Robert P. Welsh and J.M. Joosten
Piet Mondrian
Two Mondriaan sketchbooks, 1912-1914, etc. ([Edited by] Robert P. Welsh and J. M. Joosten.-Introduction and English translations: Robert P. Welsh.).
Piet Mondrian, 1872-1944. Catalogue by Robert P. Welsh. The Art Gallery of Toronto, February 12 to March 20, 1966. Philadelphia Museum of Art, April 8 to May 9, 1966. Gemeentemuseum, The Hague, June 15 to August 7, 1966. [With Illustrations.].
Piet Mondrian
Sociolinguistic History of Scotland
A welsh grammar and other tracts
Wales and the American Dream
On the function of the subjunctive mood in Welsh
A Complete History of the Case of the Welsh Fasting-girl (Sarah Jacob), with Comments Thereon; and Observations on Death from Starvation
The Glacier Lakes Ecosystem Experiments Site
Catalogue Raisonné of the Naturalistic Works
Mondrian (Piet)
Piet Mondrian: Catalogue raisonné of the naturalistic works (until early 1911). Vol. 2: Catalogue raisonné of the work of 1911-1944 ; Appendix
Piet Mondrian
Piet Mondrian
Piet Mondrian : catalogue raisonné. 1. Catalogue raisonné of the naturalistic works (until early 1911)
Piet Mondrian
Piet Mondrian
Piet Mondrian : catalogue raisonné. 2. Catalogue raisonné of the work of 1911 - 1944