APA استشهاد

Ermolenko, N., & J. Schmorak. (1966). Trace Elements and Colloids in Soils (2nd.). Nauka I tekhnika.

استشهاد بنمط شيكاغو

Ermolenko, N.F, و J. Schmorak. Trace Elements and Colloids in Soils. 2nd. Minsk: Nauka I tekhnika, 1966.

MLA استشهاد

Ermolenko, N.F, و J. Schmorak. Trace Elements and Colloids in Soils. 2nd. Nauka I tekhnika, 1966.