Style de citation APA (7e éd.)

Fenstad, J. E. (1980). General recursion theory: An axiomatic approach. Springer-Verlag.

Style de citation Chicago (17e éd.)

Fenstad, Jens Erik. General Recursion Theory: An Axiomatic Approach. Berlin ; New York ; Heidelberg: Springer-Verlag, 1980.

Style de citation MLA (8e éd.)

Fenstad, Jens Erik. General Recursion Theory: An Axiomatic Approach. Springer-Verlag, 1980.

警告：這些引文格式不一定是100％准確.