APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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