APA (7th ed.) Citation

Jongmans, W. J., Heide, S. v. d., Jongmans, W. J., & Heide, S. v. d. (1953). Palaeontological notes on the coalfields of the province of Gelderland in the eastern Netherlands. Aelst.

Chicago Style (17th ed.) Citation

Jongmans, Willem Joseph, Simon van der Heide, Willem Joseph Jongmans, and Simon van der Heide. Palaeontological Notes on the Coalfields of the Province of Gelderland in the Eastern Netherlands. Maastricht: Aelst, 1953.

MLA (9th ed.) Citation

Jongmans, Willem Joseph, et al. Palaeontological Notes on the Coalfields of the Province of Gelderland in the Eastern Netherlands. Aelst, 1953.