एपीए उद्धरण

Robertson, R. M. (1965). Business horizons. Graduate school of business.

शिकागो स्टाइल उद्धरण

Robertson, Ross M. Business Horizons. Bloomington: Graduate school of business, 1965.

एमएलए उद्धरण

Robertson, Ross M. Business Horizons. Graduate school of business, 1965.