GAMS :
a user's guide /
by Anthony Brooke, David Kendrick, Alexander Meeraus ; tutorial by Richard E. Rosenthal.

APA Citation

Brooke, A., Meeraus, A., Kendrick, D. A. (1992). GAMS: a user's guide. Release 2.25 Danvers, Mass.: Boyd & Fraser.

MLA Citation

Brooke, Anthony, Alexander Meeraus, and David A Kendrick. GAMS: a User's Guide. Release 2.25 Danvers, Mass.: Boyd & Fraser, 1992.

Warning: These citations may not always be complete (especially for serials).