Delos Reyes, R. P., & Perez, J. A. (1980). 47=Forty-seven communal gravity systems: Organization profile. Institute of Philippine Culture, Ateneo de Manila University.
Chicago Style (17th ed.) CitationDelos Reyes, Romana P., and Jessica Acosta Perez. 47=Forty-seven Communal Gravity Systems: Organization Profile. Quezon City: Institute of Philippine Culture, Ateneo de Manila University, 1980.
MLA (9th ed.) CitationDelos Reyes, Romana P., and Jessica Acosta Perez. 47=Forty-seven Communal Gravity Systems: Organization Profile. Institute of Philippine Culture, Ateneo de Manila University, 1980.
Warning: These citations may not always be 100% accurate.