Cita APA (7a ed.)

USDA. (1952). Manual for testing agricultural and vegetable seeds. [editor no identificado].

Cita Chicago Style (17a ed.)

USDA. Manual for Testing Agricultural and Vegetable Seeds. [Lugar de publicación no identificado]: [editor no identificado], 1952.

Cita MLA (8a ed.)

USDA. Manual for Testing Agricultural and Vegetable Seeds. [editor no identificado], 1952.