Sanders, S., & Cheney, D. R. (1980). The Meaning of life: Questions, answers, and analysis. Prentice-Hall.
Citazione stile Chigago Style (17a edizione)Sanders, Steven, e David R. Cheney. The Meaning of Life: Questions, Answers, and Analysis. Englewood Cliffs, N.J: Prentice-Hall, 1980.
Citatione MLA (9a ed.)Sanders, Steven, e David R. Cheney. The Meaning of Life: Questions, Answers, and Analysis. Prentice-Hall, 1980.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.