APA (7th ed.) Citation

Collings, G. H. (1949). Commercial fertilizers: Their sources and use (4. ed., repr. with add. and corr.). Blakiston.

Chicago Style (17th ed.) Citation

Collings, Gilbeart H. Commercial Fertilizers: Their Sources and Use. 4. ed., repr. with add. and corr. Philadelphia [u.a.]: Blakiston, 1949.

MLA (9th ed.) Citation

Collings, Gilbeart H. Commercial Fertilizers: Their Sources and Use. 4. ed., repr. with add. and corr. Blakiston, 1949.