Cita APA (7th ed.)

BRADSTREET, R. (1965). The Kjeldahl method for organic nitrogen. Academic Pr.'.

Cita Chicago (17th ed.)

BRADSTREET, R.B. The Kjeldahl Method for Organic Nitrogen. New York: Academic Pr.', 1965.

Cita MLA (9th ed.)

BRADSTREET, R.B. The Kjeldahl Method for Organic Nitrogen. Academic Pr.', 1965.