APA (7th ed.) Citation

Thoreau , H. D., Mac Say , S., Abbott , L. D., Alcott , L., Whitman , W., Casseres , B. d., . . . Prudhommeaux , A. (1959). Henri-David Thoreau. L'Unique.

Chicago Style (17th ed.) Citation

Thoreau , Henry David, et al. Henri-David Thoreau. L'Unique, 1959.

MLA (8th ed.) Citation

Thoreau , Henry David, et al. Henri-David Thoreau. L'Unique, 1959.

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