Citazione Stile APA (7a Edizione)

Poland, U. (1988). World directory of biological and medical sciences libraries. K.G. Saur.

Citazione stile Chigago Style (17a edizione)

Poland, Ursula. World Directory of Biological and Medical Sciences Libraries. München ; New York: K.G. Saur, 1988.

Citatione MLA (9a ed.)

Poland, Ursula. World Directory of Biological and Medical Sciences Libraries. K.G. Saur, 1988.