एपीए उद्धरण

Bear, F. E. (1938). Theory and practices in the use of fertilizers (2.). John Wiley & Sons INC.

शिकागो स्टाइल उद्धरण

Bear, Firman E. Theory and Practices in the Use of Fertilizers. 2. NewYork: John Wiley & Sons INC, 1938.

एमएलए उद्धरण

Bear, Firman E. Theory and Practices in the Use of Fertilizers. 2. John Wiley & Sons INC, 1938.