APA-ийн эшлэл(7 дахь хэвлэлт)

Halls, W. D. (1971). International equivalences in access to higher education: A study of problems with special reference to selected countries. Unesco.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Halls, W. D. International Equivalences in Access to Higher Education: A Study of Problems with Special Reference to Selected Countries. Paris: Unesco, 1971.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Halls, W. D. International Equivalences in Access to Higher Education: A Study of Problems with Special Reference to Selected Countries. Unesco, 1971.