APA (7th ed.) Citation
CRPE/PE, C. R. d. P. E. d. P. -. (1957). .
Chicago Style (17th ed.) Citation
CRPE/PE, Centro Regional de Pesquisas Educacionais de Pernambuco -. . 1957.
MLA (9th ed.) Citation
CRPE/PE, Centro Regional de Pesquisas Educacionais de Pernambuco -. . 1957.
Warning: These citations may not always be 100% accurate.