Osburn, W. J. (1924). Corrective arithmetic: For supervisors, teachers and teacher-training classes. Houghton Mifflin Company.
Chicago Style (17th ed.) CitationOsburn, Worth J. Corrective Arithmetic: For Supervisors, Teachers and Teacher-training Classes. Boston: Houghton Mifflin Company, 1924.
MLA (9th ed.) CitationOsburn, Worth J. Corrective Arithmetic: For Supervisors, Teachers and Teacher-training Classes. Houghton Mifflin Company, 1924.
Warning: These citations may not always be 100% accurate.