APA (7e ed.) Bronvermelding

Whalen, J. K. (2012). Soil Fertility Improvement and Integrated Nutrient Management: A Global Perspective. IntechOpen.

Chicago (17e ed.) Bronvermelding

Whalen, Joann K. Soil Fertility Improvement and Integrated Nutrient Management: A Global Perspective. IntechOpen, 2012.

MLA (9e ed.) Bronvermelding

Whalen, Joann K. Soil Fertility Improvement and Integrated Nutrient Management: A Global Perspective. IntechOpen, 2012.

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