APA aipamena

Bhalla, A. (1992). Environment, employment and development. International labour office.

Chicago Style aipamena

Bhalla, A.S. Environment, Employment and Development. Geneva: International labour office, 1992.

MLA aipamena

Bhalla, A.S. Environment, Employment and Development. International labour office, 1992.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.