APA (7th ed.) Citation

Groult, P. (1947). La Formation des langues romanes. Casterman.

Chicago Style (17th ed.) Citation

Groult, Pierre. La Formation Des Langues Romanes. Tournai [etc.]: Casterman, 1947.

MLA (9th ed.) Citation

Groult, Pierre. La Formation Des Langues Romanes. Casterman, 1947.

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