APA (7th ed.) Citation

SINGER, F. L., GASPAR TORRENT, R., & GUTIERREZ VAZQUEZ, A. (1971). Resistencia de materiales. Harper & Row Publishers.

Chicago Style (17th ed.) Citation

SINGER, Ferdinand León, Raimundo GASPAR TORRENT, and Angel GUTIERREZ VAZQUEZ. Resistencia De Materiales. Madrid: Harper & Row Publishers, 1971.

MLA (9th ed.) Citation

SINGER, Ferdinand León, et al. Resistencia De Materiales. Harper & Row Publishers, 1971.