APA (7th ed.) Citation

Asperen de Boer, J. R. J. v., Engelsman, W. J., & Filedt Kok, J. P. (1982). A progress report on the investigation of the underdrawing in the paintings of the group van der Weyden/Flémalle.

Chicago Style (17th ed.) Citation

Asperen de Boer, Johan Rudolph Justus van, W. J. Engelsman, and J. P. Filedt Kok. A Progress Report on the Investigation of the Underdrawing in the Paintings of the Group Van Der Weyden/Flémalle. 1982.

MLA (9th ed.) Citation

Asperen de Boer, Johan Rudolph Justus van, et al. A Progress Report on the Investigation of the Underdrawing in the Paintings of the Group Van Der Weyden/Flémalle. 1982.

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