(1925). Projects for all the grades: Containing one hundred sixty-three practical projects in all subjects taught in the grades, correlating the activities of school and home, and motivating instruction through the joy of being useful / by Frank M. Rich.
Παραπομπή σε μορφή Chicago (17η εκδ.)Projects for All the Grades: Containing One Hundred Sixty-three Practical Projects in All Subjects Taught in the Grades, Correlating the Activities of School and Home, and Motivating Instruction Through the Joy of Being Useful / by Frank M. Rich. 1925.
Παραπομπή σε μορφή MLA (9th εκδ.)Projects for All the Grades: Containing One Hundred Sixty-three Practical Projects in All Subjects Taught in the Grades, Correlating the Activities of School and Home, and Motivating Instruction Through the Joy of Being Useful / by Frank M. Rich. 1925.