APA استشهاد

Malberbe, I. V. (1948). Soil fertility (3.). Oxford university press.

استشهاد بنمط شيكاغو

Malberbe, I V. Soil Fertility. 3. U S A: Oxford university press, 1948.

MLA استشهاد

Malberbe, I V. Soil Fertility. 3. Oxford university press, 1948.