Adler, R. B., & Proctor, R. F. (2017). Looking out, looking in (Fifteenth edition.). Wadsworth Cengage Learning.
Citazione stile Chigago Style (17a edizione)Adler, Ronald B., e Russell F. Proctor. Looking Out, Looking in. Fifteenth edition. Boston, Massachusetts: Wadsworth Cengage Learning, 2017.
Citatione MLA (9a ed.)Adler, Ronald B., e Russell F. Proctor. Looking Out, Looking in. Fifteenth edition. Wadsworth Cengage Learning, 2017.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.