Cita APA (7th ed.)

Sinnes, A. C., & Manning, S. (1979). All about fertilizers, soils & water. Ortho Books.

Cita Chicago (17th ed.)

Sinnes, A. Cort, i Shirley Manning. All About Fertilizers, Soils & Water. San Francisco, Calif: Ortho Books, 1979.

Cita MLA (9th ed.)

Sinnes, A. Cort, i Shirley Manning. All About Fertilizers, Soils & Water. Ortho Books, 1979.