APA

Hill (Richard M) ;Alexender (Ralph S), . (1998). Industrial Marketing. : .

Chicago

Hill (Richard M) ;Alexender (Ralph S), . 1998. Industrial Marketing. : .

Harvard

Hill (Richard M) ;Alexender (Ralph S), . (1998). Industrial Marketing. : .

MLA

Hill (Richard M) ;Alexender (Ralph S), . Industrial Marketing. : . 1998.