Cita APA (7th ed.)

Ulmer, M. J. (1965). Economics: Theory and practice (2d ed.). Houghton Mifflin.

Cita Chicago (17th ed.)

Ulmer, Melville J. Economics: Theory and Practice. 2d ed. Boston: Houghton Mifflin, 1965.

Cita MLA (8th ed.)

Ulmer, Melville J. Economics: Theory and Practice. 2d ed. Houghton Mifflin, 1965.