Principles and practices of teaching in secondary schools /

• Main Author: Risk, Thomas M., (Thomas Marion), 1885- (συγγραφέας)
• Format: Book
• Language: English
• Published: New York : American Book, 1958
• Edition: 3rd ed.
• Subjects: Εκπαίδευση πειραματική; Παιδαγωγική ψυχολογία