Cita APA (7a ed.)

Helmkamp, G. K. (1983). Selected experiments in organic chemistry (3rd ed.). W. H. Freeman.

Cita Chicago Style (17a ed.)

Helmkamp, George K. Selected Experiments in Organic Chemistry. 3rd ed. New York [etc.]: W. H. Freeman, 1983.

Cita MLA (9a ed.)

Helmkamp, George K. Selected Experiments in Organic Chemistry. 3rd ed. W. H. Freeman, 1983.