Cunningham, J. P. (1975). Modular activities in science: Teacher's guide. Houghton Mifflin.
Cita Chicago (17th ed.)Cunningham, John P. Modular Activities in Science: Teacher's Guide. Boston: Houghton Mifflin, 1975.
Cita MLA (9th ed.)Cunningham, John P. Modular Activities in Science: Teacher's Guide. Houghton Mifflin, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.