Cita APA (7a ed.)

Whealy, K., & Demuth, S. (1993). Fruit, berry and nut inventory: An inventory of nursery catalogs listing all fruit, berry and nut varieties available by mail order in the United States (2nd. ed.). Seed Saver Publications.

Cita Chicago Style (17a ed.)

Whealy, Kent, y Steve Demuth. Fruit, Berry and Nut Inventory: An Inventory of Nursery Catalogs Listing All Fruit, Berry and Nut Varieties Available by Mail Order in the United States. 2nd. ed. Iowa: Seed Saver Publications, 1993.

Cita MLA (8a ed.)

Whealy, Kent, y Steve Demuth. Fruit, Berry and Nut Inventory: An Inventory of Nursery Catalogs Listing All Fruit, Berry and Nut Varieties Available by Mail Order in the United States. 2nd. ed. Seed Saver Publications, 1993.