Cita APA (7th ed.)

Underwood, E. J. (1956). Trace elements in human and animal nutrition. Academic Press Inc.

Cita Chicago (17th ed.)

Underwood, Eric J. Trace Elements in Human and Animal Nutrition. New York: Academic Press Inc, 1956.

Cita MLA (9th ed.)

Underwood, Eric J. Trace Elements in Human and Animal Nutrition. Academic Press Inc, 1956.