APA (7th ed.) Citation

Sagan, F. (1965). Cierta sonrisa. G.P.

Chicago Style (17th ed.) Citation

Sagan, Françoise. Cierta Sonrisa. Barcelona: G.P, 1965.

MLA (9th ed.) Citation

Sagan, Françoise. Cierta Sonrisa. G.P, 1965.

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