APA (7th ed.) Citation

Duyvis, F. D., & Duyvis, F. D. (1961). Document reproduction services: Their efficient organization and management. UNESCO.

Chicago Style (17th ed.) Citation

Duyvis, F. Donker, and F Donker;Schippers Duyvis. Document Reproduction Services: Their Efficient Organization and Management. UNESCO, 1961.

MLA (9th ed.) Citation

Duyvis, F. Donker, and F Donker;Schippers Duyvis. Document Reproduction Services: Their Efficient Organization and Management. UNESCO, 1961.

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