APA

Davis (Guy Hart), . (1997). Abcs Of World97 Ed 2. : .

Chicago

Davis (Guy Hart), . 1997. Abcs Of World97 Ed 2. : .

Harvard

Davis (Guy Hart), . (1997). Abcs Of World97 Ed 2. : .

MLA

Davis (Guy Hart), . Abcs Of World97 Ed 2. : . 1997.