APA-ийн эшлэл(7 дахь хэвлэлт)

Perry, W. G. (1970). Forms of intellectual and ethical development in the college years: Scheme. Holt Rinehart and Winston.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Perry, William G. Forms of Intellectual and Ethical Development in the College Years: Scheme. New York: Holt Rinehart and Winston, 1970.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Perry, William G. Forms of Intellectual and Ethical Development in the College Years: Scheme. Holt Rinehart and Winston, 1970.