APA
Karstein H., . (1969). New horizons in marketing, vol.II. Creative marketing services, Mumbai: .
Chicago
Karstein H, . 1969. New horizons in marketing, vol.II. Creative marketing services, Mumbai: .
Harvard
Karstein H., . (1969). New horizons in marketing, vol.II. Creative marketing services, Mumbai: .
MLA
Karstein H, . New horizons in marketing, vol.II. Creative marketing services, Mumbai: . 1969.