APA (7th ed.) Citation

Legendre, P. (1988). Leçons. Leçons.

Chicago Style (17th ed.) Citation

Legendre, Pierre. "Leçons." Leçons 1988.

MLA (9th ed.) Citation

Legendre, Pierre. "Leçons." Leçons, 1988.

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