APA

Sigler L. E., . (1979). Exercises in set theory. : Narosa Publishing House, New Delhi.

Chicago

Sigler L E, . 1979. Exercises in set theory. : Narosa Publishing House, New Delhi.

Harvard

Sigler L. E., . (1979). Exercises in set theory. : Narosa Publishing House, New Delhi.

MLA

Sigler L E, . Exercises in set theory. : Narosa Publishing House, New Delhi. 1979.