APA (7th ed.) Citation

Santos, R. P. (1970). Sapo-texta. s.n.

Chicago Style (17th ed.) Citation

Santos, Ramon Pagayon. Sapo-texta. [New York: s.n, 1970.

MLA (9th ed.) Citation

Santos, Ramon Pagayon. Sapo-texta. s.n, 1970.