Παραπομπή APA

Tisdale, S. (1975). Soil fertility and fertilizers. Macmillan Company.

Παραπομπή Chicago Style

Tisdale, S.L. Soil Fertility and Fertilizers. New York: Macmillan Company, 1975.

Παραπομπή MLA

Tisdale, S.L. Soil Fertility and Fertilizers. Macmillan Company, 1975.