APA (7th ed.) Citation

Philippines & Rex Editorial Staff. (1978). National internal revenue code .. Rex Book Store.

Chicago Style (17th ed.) Citation

Philippines and Rex Editorial Staff. National Internal Revenue Code .. Manila: Rex Book Store, 1978.

MLA (9th ed.) Citation

Philippines and Rex Editorial Staff. National Internal Revenue Code .. Rex Book Store, 1978.

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