APA استشهاد

Gunther, F. A. (1968). Residue reviews V.20: Residues of pesticides and other foreign chemicals in food and feed. Springer - verlag.

استشهاد بنمط شيكاغو

Gunther, Francis A. Residue Reviews V.20: Residues of Pesticides and Other Foreign Chemicals in Food and Feed. Berlin: Springer - verlag, 1968.

MLA استشهاد

Gunther, Francis A. Residue Reviews V.20: Residues of Pesticides and Other Foreign Chemicals in Food and Feed. Springer - verlag, 1968.