Cita APA (7th ed.)

Whitman, W. (1995). Specimen days and collect (1a. ed.). Dover Publications, Inc.

Cita Chicago (17th ed.)

Whitman, Walt. Specimen Days and Collect. 1a. ed. Nueva York: Dover Publications, Inc, 1995.

Cita MLA (9th ed.)

Whitman, Walt. Specimen Days and Collect. 1a. ed. Dover Publications, Inc, 1995.