APA (7e ed.) Bronvermelding

California Fertilizer Association. Soil Improvement Committee. (1990). Western fertilizer handbook. Interstate Publishers.

Chicago (17e ed.) Bronvermelding

California Fertilizer Association. Soil Improvement Committee. Western Fertilizer Handbook. Danville: Interstate Publishers, 1990.

MLA (9e ed.) Bronvermelding

California Fertilizer Association. Soil Improvement Committee. Western Fertilizer Handbook. Interstate Publishers, 1990.

Let op: Deze citaties zijn niet altijd 100% accuraat.