Cita APA

Collings, G. H. (1955). Commercial fetilizers their sources and use (Ed.5.).

Chicago Edition Citation

Collings, Gilbert H. Commercial Fetilizers Their Sources and Use. Ed.5. 1955.

Cita MLA

Collings, Gilbert H. Commercial Fetilizers Their Sources and Use. Ed.5. 1955.

Atenció: Aquestes cites poden no estar 100% correctes.