APA (7th ed.) Citation

Abs, R. Catalogue: Lettres, documents, manuscrits, etc. Bruxelles: Institut Emile Vandervelde.

Chicago Style (17th ed.) Citation

Abs, Robert. Catalogue: Lettres, Documents, Manuscrits, Etc. Bruxelles: Institut Emile Vandervelde.

MLA (8th ed.) Citation

Abs, Robert. Catalogue: Lettres, Documents, Manuscrits, Etc. Bruxelles: Institut Emile Vandervelde.

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