APA
J.E. Baldin, . (1990). Tetrahedon Letters. New York: Pergamon Press.
Chicago
J.E. Baldin, . 1990. Tetrahedon Letters. New York: Pergamon Press.
Harvard
J.E. Baldin, . (1990). Tetrahedon Letters. New York: Pergamon Press.
MLA
J.E. Baldin, . Tetrahedon Letters. New York: Pergamon Press. 1990.