APA (7th ed.) Citation

Santos, J. P. (1941). The A B C of the Katipunan (English, Spanish and Tagalog). [publisher not identified].

Chicago Style (17th ed.) Citation

Santos, Jose P. The A B C of the Katipunan (English, Spanish and Tagalog). [place of publication not identified]: [publisher not identified], 1941.

MLA (9th ed.) Citation

Santos, Jose P. The A B C of the Katipunan (English, Spanish and Tagalog). [publisher not identified], 1941.