School Mathematics Project. (1969). SMP Book F: Teacher's guide. The University Press.
Cita Chicago (17th ed.)School Mathematics Project. SMP Book F: Teacher's Guide. Cambridge: The University Press, 1969.
Cita MLA (9th ed.)School Mathematics Project. SMP Book F: Teacher's Guide. The University Press, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.