APA (7th ed.) Citation

Silva Celis, E. (1963). Petroglifos de "El Encanto". Bogotá, D.C. (Colombia) : [s.n.].

Chicago Style (17th ed.) Citation

Silva Celis, Eliecer. Petroglifos De "El Encanto". Bogotá, D.C. (Colombia) : [s.n.], 1963.

MLA (8th ed.) Citation

Silva Celis, Eliecer. Petroglifos De "El Encanto". Bogotá, D.C. (Colombia) : [s.n.], 1963.

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