APA
(1960). Encyclopedia of Science and Technology Vol - XIII. New York: McGRAW HILL.
Chicago
1960. Encyclopedia of Science and Technology Vol - XIII. New York: McGRAW HILL.
Harvard
(1960). Encyclopedia of Science and Technology Vol - XIII. New York: McGRAW HILL.
MLA
Encyclopedia of Science and Technology Vol - XIII. New York: McGRAW HILL. 1960.