Cita APA (7th ed.)

Bradstreet, R. B. (1965). The Kjeldahl method for organic nitrogen. Academic Press.

Cita Chicago (17th ed.)

Bradstreet, R. B. The Kjeldahl Method for Organic Nitrogen. Nueva York: Academic Press, 1965.

Cita MLA (9th ed.)

Bradstreet, R. B. The Kjeldahl Method for Organic Nitrogen. Academic Press, 1965.