APA Citation

Sigler, L., & Sigler, L. (1981). Algebra. Barcelona: Reverté.

Chicago Style Citation

Sigler, L.E., and L.E Sigler. Algebra. Barcelona: Reverté, 1981.

MLA Citation

Sigler, L.E., and L.E Sigler. Algebra. Barcelona: Reverté, 1981.

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