APA (7th ed.) Citation

Stelt, L. v. d., & Wanders, R. (1979). Catalogue of windmachines. Working Group for Development Techniques.

Chicago Style (17th ed.) Citation

Stelt, L.E.R. van der, and R. Wanders. Catalogue of Windmachines. Enschede: Working Group for Development Techniques, 1979.

MLA (9th ed.) Citation

Stelt, L.E.R. van der, and R. Wanders. Catalogue of Windmachines. Working Group for Development Techniques, 1979.

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