APA

Wyke A., Donald T., .Perl:beginners Guide. New Delhi: Tata McGraw Hill publishers.

Chicago

Wyke Allen, Donald Tomas, .Perl:beginners Guide. New Delhi: Tata McGraw Hill publishers.

Harvard

Wyke A., Donald T., .Perl:beginners Guide. New Delhi: Tata McGraw Hill publishers.

MLA

Wyke Allen, Donald Tomas, .New Delhi: Tata McGraw Hill publishers. .