21.
 |  | Title: Special concretes, and concrete products by Portland Cement Association ISBN: 047167432X Publisher: Wiley Pub. Date: 1975
|
22.
 |  | Title: Concrete Inspection Procedures by Portland Cement Association ISBN: 0471674311 Publisher: John Wiley & Sons (Sd) Pub. Date: 01 June, 1975 List Price: $15.95 Amazon.com Price: $15.95 |
23.
 |  | Title: Knitting : A Step by Step Guide by Portland House ISBN: 0517028883 Publisher: Gramercy Pub. Date: 03 June, 1990 List Price: $19.99 Amazon.com Price: $19.99 |
24.
 |  | Title: Dirty and Dirtier Little Limericks by Portland House ISBN: 0517489783 Publisher: Random House~trade
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25.
 |  | Title: Wood Engineering in the 21st Century: Research Needs and Goals : Proceedings of the Workshop Offered in Conjunction With the Sei/Asce Structures Congress Xv, Portland, Oregon, 16 April by Kenneth J. Fridley, American Society of Civil Engineers, Or.) Structures Congress 1997 Portland ISBN: 0784402957 Publisher: American Society of Civil Engineers Pub. Date: 01 September, 1997 List Price: $28.00 Amazon.com Price: $28.00 |
26.
 |  | Title: Optimal Performance of Civil Infrastructure Systems: Proceedings of the International Workshop on Optimal Performance of Civil Infrastructure Systems ... Conjunction With the Asce Technical committee by International Workshop on Optimal Performance of Civil Infrastructure, Dan M. Frangopol, Asce Technical Committee on Optimal Structural Design Meeting, Or.) Structures Congress 1997 Portland ISBN: 0784403155 Publisher: American Society of Civil Engineers Pub. Date: 01 June, 1998 List Price: $35.00 Amazon.com Price: $35.00 |
27.
 |  | Title: Off-Campus Library Services by Anne Marie Casey, Or.) Off-Campus Library Services Conference 2000 Portland ISBN: 0789013401 Publisher: Haworth Information Press Pub. Date: 01 September, 2001 List Price: $49.95 Amazon.com Price: $49.95 |
28.
 |  | Title: Design and Control of Concrete Mixtures (13th ed) (EB-001) by Portland Cement Association ISBN: 0893120871 Publisher: Portland Cement Association Pub. Date: 01 February, 1988 List Price: $35.00 Amazon.com Price: $35.00 |
29.
 |  | Title: Design and Control of Concrete Mixtures: Canadian by Canadian Portland Cement Association ISBN: 0893121355 Publisher: Portland Cement Association Pub. Date: May, 1995 List Price: $35.00 Amazon.com Price: $35.00 |
30.
 |  | Title: From Portland's Palate by Junior League of Portland Staff ISBN: 0963252518 Publisher: Junior League of Portland Pub. Date: 01 June, 1992 List Price: $24.95 Amazon.com Price: $24.95 |