Παραπομπή σε μορφή APA (7η εκδ.)

Baerwald, D. A. (1968). A survey of planning information in standard reference books. Council of Planning Librarians.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Baerwald, Diane A. A Survey of Planning Information in Standard Reference Books. Monticello, Ill: Council of Planning Librarians, 1968.

Παραπομπή σε μορφή MLA (9th εκδ.)

Baerwald, Diane A. A Survey of Planning Information in Standard Reference Books. Council of Planning Librarians, 1968.