APA

Liberty (Jesse), . (1999). Teach Yourself C++ In 21 Days. : .

Chicago

Liberty (Jesse), . 1999. Teach Yourself C++ In 21 Days. : .

Harvard

Liberty (Jesse), . (1999). Teach Yourself C++ In 21 Days. : .

MLA

Liberty (Jesse), . Teach Yourself C++ In 21 Days. : . 1999.