APA (7th ed.) Citation

Rivera, V. C., & Santos, E. P. (1968). Municipality of La Libertad. s.n.].

Chicago Style (17th ed.) Citation

Rivera, Vic C., and Ernesto P. Santos. Municipality of La Libertad. [S.l: s.n.], 1968.

MLA (9th ed.) Citation

Rivera, Vic C., and Ernesto P. Santos. Municipality of La Libertad. s.n.], 1968.