Secondary school science and mathematics teachers ; characteristics and service loads. Report of a survey by the National Association of State Directors of Teacher Education and Certification and the American Association for the Advancement of Science for the National Science Foundation.

Manylion Llyfryddiaeth
Awduron Corfforaethol: National Association of State Directors of Teacher Education and Certification, American Association for the Advancement of Science, National Science Foundation (U.S.)
Fformat: Llyfr
Iaith:English
Cyhoeddwyd: [Washington] : [National Science Foundation ; for sale by the Superintendent of Documents]: [[U. S. Govt. Print. Off.], [1963]
Pynciau:

Lehigh

Manylion daliadau o Lehigh
Rhif Galw: 507.12 U58s

Temple

Manylion daliadau o Temple
Rhif Galw: LB1777 .N24