McMurtry, G. (1963). Wheat Alternatives for the Virginia Grower. 1963- Year of Decision. Virginia Polytechnic Institute. Agricultural Extension Service.
Cita Chicago Style (17a ed.)McMurtry, Gene. Wheat Alternatives for the Virginia Grower. 1963- Year of Decision. Virginia: Virginia Polytechnic Institute. Agricultural Extension Service, 1963.
Cita MLA (8a ed.)McMurtry, Gene. Wheat Alternatives for the Virginia Grower. 1963- Year of Decision. Virginia Polytechnic Institute. Agricultural Extension Service, 1963.
Precaución: Estas citas no son 100% exactas.