APA (7th ed.) Citation

Skinner, B. F. (1985). Walden dos. Orbis.

Chicago Style (17th ed.) Citation

Skinner, B. F. Walden Dos. [Barcelona]: Orbis, 1985.

MLA (9th ed.) Citation

Skinner, B. F. Walden Dos. Orbis, 1985.

Warning: These citations may not always be 100% accurate.