APA

(1992). Consigna - No.434,432,430,429,428,427,426,412,420-421,418-419,414,415,413. Bogotá: Universidad de Boyacá.

Chicago

1992. Consigna - No.434,432,430,429,428,427,426,412,420-421,418-419,414,415,413. Bogotá: Universidad de Boyacá.

Harvard

(1992). Consigna - No.434,432,430,429,428,427,426,412,420-421,418-419,414,415,413. Bogotá: Universidad de Boyacá.

MLA

Consigna - No.434,432,430,429,428,427,426,412,420-421,418-419,414,415,413. Bogotá: Universidad de Boyacá. 1992.