Citazione Stile APA (7a Edizione)

Murphy, S. L., Pietrangeli, A., & Kahane, H. R. (1954). Descriptive studies in Spanish grammar. University of Illinois.

Citazione stile Chigago Style (17a edizione)

Murphy, Spencer Leroy., Angelina Pietrangeli, e Henry Romanos Kahane. Descriptive Studies in Spanish Grammar. Urbana: University of Illinois, 1954.

Citatione MLA (9a ed.)

Murphy, Spencer Leroy., et al. Descriptive Studies in Spanish Grammar. University of Illinois, 1954.