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.
Lua i Stíl Chicago (17ú heag.)Lopez, Cecilio, agus 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.
Lua MLA (9ú heag.)Lopez, Cecilio, agus 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.