Weiner, D. J., & Atkinson, M. (1989). The video source book: A guide to over 54,000 programs currently available on video from more than 1,300 sources, in the areas of movies/entertainment, sports/ recreation ; fine arts / general interest, education, health / science, business/industry; chlidren/juvenile; how to/instruction (10th ed.). Gale Research Inc.

Weiner, David J., and Michael Atkinson. The Video Source Book: A Guide to over 54,000 Programs Currently Available on Video from More than 1,300 Sources, in the Areas of Movies/entertainment, Sports/ Recreation ; Fine Arts / General Interest, Education, Health / Science, Business/industry; Chlidren/juvenile; How To/instruction. 10th ed. Detroit, Mich: Gale Research Inc, 1989.

Weiner, David J., and Michael Atkinson. The Video Source Book: A Guide to over 54,000 Programs Currently Available on Video from More than 1,300 Sources, in the Areas of Movies/entertainment, Sports/ Recreation ; Fine Arts / General Interest, Education, Health / Science, Business/industry; Chlidren/juvenile; How To/instruction. 10th ed. Gale Research Inc, 1989.