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. .