APA-ийн эшлэл(7 дахь хэвлэлт)

Eggen, P. D. (1988). Strategies for teachers: Teaching content and thinking skills (2nd.ed.). Prentice-Hall.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Eggen, Paul D. Strategies for Teachers: Teaching Content and Thinking Skills. 2nd.ed. Englewood Cliffs: Prentice-Hall, 1988.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Eggen, Paul D. Strategies for Teachers: Teaching Content and Thinking Skills. 2nd.ed. Prentice-Hall, 1988.