Cita APA

Helmkamp, G. K., & Johnson, H. W. (1983). Selected experiments in organic chemistry (3. edition.). New York, New York: W.H. Freeman.

Citación estilo Chicago

Helmkamp, George K., y Harry W. Johnson. Selected Experiments in Organic Chemistry. 3. edition. New York, New York: W.H. Freeman, 1983.

Cita MLA

Helmkamp, George K., y Harry W. Johnson. Selected Experiments in Organic Chemistry. 3. edition. New York, New York: W.H. Freeman, 1983.