APA (7th ed.) Citation

Ferguson, C. A., Valdman, A., Sauer, L., & Sebeok, T. A. (1966). Theoretical foundations. Mouton.

Chicago Style (17th ed.) Citation

Ferguson, Charles A., Albert Valdman, Lucia Sauer, and Thomas A. Sebeok. Theoretical Foundations. The Hague: Mouton, 1966.

MLA (9th ed.) Citation

Ferguson, Charles A., et al. Theoretical Foundations. Mouton, 1966.