APA-viite (7. p.)

Kurtzig, M. E. (1974). Agricultural production and trade. U.S. Dept. of Agriculture, Economic Research Service.

Chicago-viite (17. p.)

Kurtzig, Michael E. Agricultural Production and Trade. [Washington]: U.S. Dept. of Agriculture, Economic Research Service, 1974.

MLA-viite (8. p.)

Kurtzig, Michael E. Agricultural Production and Trade. U.S. Dept. of Agriculture, Economic Research Service, 1974.