APA (7th ed.) Citation

United Nations Educational, Scientific and Cultural Organization, & Lengyel, P. (1971). Approaches to the science of socio-economic development: Edited by Peter Lengyel, with contributions by Raymond Aron and others. Unesco.

Chicago Style (17th ed.) Citation

United Nations Educational, Scientific and Cultural Organization, and Peter Lengyel. Approaches to the Science of Socio-economic Development: Edited by Peter Lengyel, with Contributions by Raymond Aron and Others. Paris: Unesco, 1971.

MLA (9th ed.) Citation

United Nations Educational, Scientific and Cultural Organization, and Peter Lengyel. Approaches to the Science of Socio-economic Development: Edited by Peter Lengyel, with Contributions by Raymond Aron and Others. Unesco, 1971.

Warning: These citations may not always be 100% accurate.