There was a second edition in 1917. Gaston Labat was the third co-author of the third edition (1921). Labat published his own book in English in 1922, the first work in English on the subject.
There was a second edition in 1917. Gaston Labat was the third co-author of the third edition (1921). Labat published his own book in English in 1922, the first work in English on the subject.
