Cita APA (7th ed.)

RICHARDS, J. H. (1967). Elements of organic chemistry. McGraw-Hill.

Cita Chicago (17th ed.)

RICHARDS, John H. Elements of Organic Chemistry. New York: McGraw-Hill, 1967.

Cita MLA (9th ed.)

RICHARDS, John H. Elements of Organic Chemistry. McGraw-Hill, 1967.