Cita APA (7a ed.)

Gilchrist Shirlaw, D. W. (1967). A practical course in agricultural chemistry ([1st ed.].). Pergamon Press.

Cita Chicago Style (17a ed.)

Gilchrist Shirlaw, Douglas Watson. A Practical Course in Agricultural Chemistry. [1st ed.]. Oxford, New York: Pergamon Press, 1967.

Cita MLA (8a ed.)

Gilchrist Shirlaw, Douglas Watson. A Practical Course in Agricultural Chemistry. [1st ed.]. Pergamon Press, 1967.