APA Citation

Philippines, N. L. o. t. (1993). Philippine National Bibliography 1991. Manila:National Library of the Philippines.

Chicago Style Citation

Philippines, National Library of the. Philippine National Bibliography 1991. Manila:National Library of the Philippines, 1993.

MLA Citation

Philippines, National Library of the. Philippine National Bibliography 1991. Manila:National Library of the Philippines, 1993.

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