1.
 |  | Title: The American Bird Conservancy Guide to 500 Most Important Bird Areas in the United States: Key Sites for Birds and Birding in All 50 States by Robert Macneill Chipley, George H. Fenwick, Michael J. Parr, David N. Pashley, Robert M. Chipley, American Bird Conservancy, Nature Conservancy ISBN: 0812970365 Publisher: Random House Trade Pub. Date: 18 November, 2003 List Price: $25.95 Amazon.com Price: $17.65 |
2.
 |  | Title: Parrots: A Guide to Parrots of the World by Tony Juniper, Michael Parr, Dan Powell, David Johnston, Carl D'Silva, Mike Parr ISBN: 0300074530 Publisher: Yale University Press Pub. Date: 01 March, 1998 List Price: $60.00 Amazon.com Price: $47.40 |
3.
 |  | Title: Enterprise Programme Management: Delivering Value by David Williams, Tim Parr ISBN: 1403917000 Publisher: Palgrave MacMillan Pub. Date: 01 February, 2004 List Price: $37.50 Amazon.com Price: $32.62 |
4.
 |  | Title: Rob Parr's Post-Pregnancy Workout by Rob Parr, David A. Rudnitsky, Bob Parr, David Samson ISBN: 0425156079 Publisher: Berkley Pub Group Pub. Date: 01 January, 1997 List Price: $13.00 Amazon.com Price: $13.00 |
5.
 |  | Title: The Marshall Cavendish Science Project Book of Water (Parker, Steve. Marshall Cavendish Library of Science Projects, V. 1.) by Steve Parker, David Parr ISBN: 0863076246 Publisher: Marshall Cavendish Corp Pub. Date: 01 October, 1986 List Price: $129.88 Amazon.com Price: $129.88 |
6.
 |  | Title: Mechanics (Step into Science) by Steve Parker, David Parr ISBN: 0246125004 Publisher: HarperCollins Publishers Pub. Date: 30 May, 1985
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7.
 |  | Title: Treatment Plant Hydraulics for Environmental Engineers by Larry D. Benefield, Joseph F. Judkins, David A. Parr ISBN: 0139302484 Publisher: Prentice Hall Pub. Date: 01 January, 1984 List Price: $76.00 Amazon.com Price: $76.00 |