Gaya APA

Purvis, R, G, L, P, O, S, &, D, D. (1928). Economics (Ed.7, Cet.1, Jlh Eksp=1). New York: Harper & Row Publisher.

Gaya MLA

Purvis, Richard, G., Lipsey,, Peter, O., Steiner, &, Douglas, D.. "Economics". Ed.7, Cet.1, Jlh Eksp=1 New York: Harper & Row Publisher, 1928. Text.