1.

A Birder's Guide to Southeastern Arizona (Aba/Lane Birdfinding Guide)
by: Richard Cachor Taylor, James A. Lane, Harold R. Holt
2005-06

2.

A Birder's Guide to Southern California
by: Harold R. Holt
1990-12

3.

A Birder's Guide to the Rio Grande Valley of Texas (Lane ABA Birdfinding Guides Ser #414
by: Harold R. Holt
1992-01

4.

The Memory Wars: Freud's Legacy in Dispute
by: Harold P. Blum, Marcia Cavell, Morris Eagle, Matthew Hugh Erdelyi, Allen Esterson, Robert R. Holt, James Hopkins, Lester Luborsky, David D. Olds, Mortimer Ostow, Bernard L. Pacella, Penelope, Herbert S. Peyser
1995-10

5.

A birder's guide to Colorado
by: Harold R Holt, James A. Lane
1990

6.

Better Birdwatching in Colorado, 2 CD set (Volumes 1-5)
by: Joseph A. LaFleur
January 19, 1999

7.

Better Birdwatching in Colorado, CD #2 (Volumes 3, 4 & 5)
by: Joseph A. LaFleur
January 19, 1999

8.

A Birder's Guide to Colorado
by: Harold R.; Lane, James A. Holt
1987

9.

A Birder's Guide to Colorado
by: Holt R. Harold
1988

10.

A birder's guide to Denver and eastern Colorado,
by: James A Lane, Harold R. Holt
January 31, 1973