Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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