APA Citatie

(1993). Improvement of soil fertility. China: International Foundation for Science (IFS).

Chicago Style citaat

Improvement of Soil Fertility. China: International Foundation for Science (IFS), 1993.

MLA citatie

Improvement of Soil Fertility. China: International Foundation for Science (IFS), 1993.

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