APA
SCHOELL WILLIAM GUILTINAN JOSEPH, . (1987). MARKETING. : .
Chicago
SCHOELL WILLIAM GUILTINAN JOSEPH, . 1987. MARKETING. : .
Harvard
SCHOELL WILLIAM GUILTINAN JOSEPH, . (1987). MARKETING. : .
MLA
SCHOELL WILLIAM GUILTINAN JOSEPH, . MARKETING. : . 1987.
