Cita APA (7a ed.)

Gordon, L. J. (1961). Economics for consumers (4ª ed.). American Book.

Cita Chicago Style (17a ed.)

Gordon, Leland J. Economics for Consumers. 4ª ed. American Book, 1961.

Cita MLA (9a ed.)

Gordon, Leland J. Economics for Consumers. 4ª ed. American Book, 1961.