APA引文

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引文

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

警告：這些引文格式不一定是100％准確.