Gaya APA

Gregory, J, (. (1971). Proceedings of the International Solvent Extraction Conference ISEC 71 Vol. I; solvent Extraction . London: Society of Chemical Industry.

Gaya MLA

Gregory, J.G., (a.o). "Proceedings of the International Solvent Extraction Conference ISEC 71 Vol. I; solvent Extraction". London: Society of Chemical Industry, 1971. Text.