APA (7th ed.) Citation

Duque Linares, J. (2009). Actitud positiva: Tips. [s.n.].

Chicago Style (17th ed.) Citation

Duque Linares, Jorge. Actitud Positiva: Tips. Bogotá: [s.n.], 2009.

MLA (9th ed.) Citation

Duque Linares, Jorge. Actitud Positiva: Tips. [s.n.], 2009.

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