Howard, M. C. (1983). Profits in economic theory. St. Martin's Press.
Tohutoru Kātū Chicago (17th ed.)Howard, Michael Charles. Profits in Economic Theory. New York: St. Martin's Press, 1983.
Tohutoro MLA (9th ed.)Howard, Michael Charles. Profits in Economic Theory. St. Martin's Press, 1983.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.