एपीए उद्धरण

Entelek incorporated Massachusetts. (1964). Sales forecasting. Entelek Inc, Newburyport.

शिकागो स्टाइल उद्धरण

Entelek incorporated Massachusetts. Sales Forecasting. Massachusetts: Entelek Inc, Newburyport, 1964.

एमएलए उद्धरण

Entelek incorporated Massachusetts. Sales Forecasting. Entelek Inc, Newburyport, 1964.