APA-ийн эшлэл(7 дахь хэвлэлт)

Isaak, A. C. (1975). Scope and methods of political science: An introduction to the methodology of political inquiry (Rev.ed.). Dorsey.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Isaak, Alan C. Scope and Methods of Political Science: An Introduction to the Methodology of Political Inquiry. Rev.ed. Illinois: Dorsey, 1975.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Isaak, Alan C. Scope and Methods of Political Science: An Introduction to the Methodology of Political Inquiry. Rev.ed. Dorsey, 1975.