Cita APA

Collings, G. H. (1955). Commercial fertilizers their source and use (5.). Mc Graw- Hill Book Company Inc.

Chicago Edition Citation

Collings, Gilbert H. Commercial Fertilizers Their Source and Use. 5. New York: Mc Graw- Hill Book Company Inc, 1955.

Cita MLA

Collings, Gilbert H. Commercial Fertilizers Their Source and Use. 5. Mc Graw- Hill Book Company Inc, 1955.

Atenció: Aquestes cites poden no estar 100% correctes.