Cita APA (7th ed.)

Rapson, W. S., & Groenewald, T. (1978). Gold usage. Academic Press.

Cita Chicago (17th ed.)

Rapson, W. S., i T. Groenewald. Gold Usage. London ; New York: Academic Press, 1978.

Cita MLA (8th ed.)

Rapson, W. S., i T. Groenewald. Gold Usage. Academic Press, 1978.