APA

Mcclanahan (David), . (1997). Teach Yourself Powerbuilder 5. : .

Chicago

Mcclanahan (David), . 1997. Teach Yourself Powerbuilder 5. : .

Harvard

Mcclanahan (David), . (1997). Teach Yourself Powerbuilder 5. : .

MLA

Mcclanahan (David), . Teach Yourself Powerbuilder 5. : . 1997.