Lopez, C., & Constantino, E. A. (1977). Selected writings of Cecilio Lopez in Philippine linguistics. Archives of Philippine Languages and Dialects ; Philippine Linguistics Circle ; Samahang Lingguwistika ng Unibersidad ng Pilipinas.
Chicago-referens (17:e uppl.)Lopez, Cecilio, och Ernesto Andres Constantino. Selected Writings of Cecilio Lopez in Philippine Linguistics. Quezon City: Archives of Philippine Languages and Dialects ; Philippine Linguistics Circle ; Samahang Lingguwistika ng Unibersidad ng Pilipinas, 1977.
MLA-referens (9:e uppl.)Lopez, Cecilio, och Ernesto Andres Constantino. Selected Writings of Cecilio Lopez in Philippine Linguistics. Archives of Philippine Languages and Dialects ; Philippine Linguistics Circle ; Samahang Lingguwistika ng Unibersidad ng Pilipinas, 1977.