City and Key Industries in Modern Nations / by Harold Rugg, Earle Rugg, Emma Schweppe.240bladzijden9 uur lezenVolgen
Statistical Methods Applied to Education; a Textbook for Students of Education in the Quantitative Study of School Problems442bladzijden16 uur lezenVolgen
The Content of American History as Taught in the Seventh and Eighth Grades; an Analysis of Typical School Textbooks64bladzijden3 uur lezenVolgen
Fundamentals of High School Mathematics: A Textbook Designed to Follow Arithmetic386bladzijden14 uur lezenVolgen