APA استشهاد

Gustavson, K. H. (1956). The chemistry and reactivity of collagen. Academic Press.

استشهاد بنمط شيكاغو

Gustavson, Karl Helmer. The Chemistry and Reactivity of Collagen. New York: Academic Press, 1956.

MLA استشهاد

Gustavson, Karl Helmer. The Chemistry and Reactivity of Collagen. Academic Press, 1956.