APA (7th ed.) Citation

(1973). Doctrina Christiana: The first book printed in the Philippines, Manila 1593. National Historical Commission.

Chicago Style (17th ed.) Citation

Doctrina Christiana: The First Book Printed in the Philippines, Manila 1593. Manila: National Historical Commission, 1973.

MLA (9th ed.) Citation

Doctrina Christiana: The First Book Printed in the Philippines, Manila 1593. National Historical Commission, 1973.

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