APA (7th ed.) Citation

Guerrero, Y. P. Economic base study of Ilocos Sur.

Chicago Style (17th ed.) Citation

Guerrero, Yolanda P. Economic Base Study of Ilocos Sur.

MLA (9th ed.) Citation

Guerrero, Yolanda P. Economic Base Study of Ilocos Sur.

Warning: These citations may not always be 100% accurate.