كتب ذات صلة

Insect life : an introduction to nature-study and a guide for teachers, students, and others interested in out-of-door life.

Insect life an introduction to nature study and a guide for teachers, students and others interested in out-of-door life

Handbook of nature-study for teachers and parents based on the Cornell nature-study leaflets

Nature-study a manual for teachers and students

• How nature study should be taught inspiring talks to teachers
  المؤلفون: Surface, Harvey Adam ,  Bigelow, Edward Fuller
• First report on the economic features of turtles of Pennsylvania.
  المؤلفون: Surface, Harvey Adam