एपीए उद्धरण

Erhun Kula. (1988). Thr economics of forestry: Modern theory and practice. Croom helm.

शिकागो स्टाइल उद्धरण

Erhun Kula. Thr Economics of Forestry: Modern Theory and Practice. London: Croom helm, 1988.

एमएलए उद्धरण

Erhun Kula. Thr Economics of Forestry: Modern Theory and Practice. Croom helm, 1988.