Santos, R. P. (1975). Quartet 1974. s.n.
Cita Chicago (17th ed.)Santos, Ramon Pagayon. Quartet 1974. [S.l: s.n, 1975.
Cita MLA (9th ed.)Santos, Ramon Pagayon. Quartet 1974. s.n, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.
Santos, R. P. (1975). Quartet 1974. s.n.
Cita Chicago (17th ed.)Santos, Ramon Pagayon. Quartet 1974. [S.l: s.n, 1975.
Cita MLA (9th ed.)Santos, Ramon Pagayon. Quartet 1974. s.n, 1975.