APA

Bear F. E., . (1953). Soils and fertilizers. New York: John Wiley & Sons.

Chicago

Bear Friman Edward, . 1953. Soils and fertilizers. New York: John Wiley & Sons.

Harvard

Bear F. E., . (1953). Soils and fertilizers. New York: John Wiley & Sons.

MLA

Bear Friman Edward, . Soils and fertilizers. New York: John Wiley & Sons. 1953.