APA (7th ed.) Citation

Krebs, A. H. (1954). For more effective teaching; a problem solving approach for teachers of vocational agriculture. The Interstate.

Chicago Style (17th ed.) Citation

Krebs, Alfred H. For More Effective Teaching; a Problem Solving Approach for Teachers of Vocational Agriculture. Danville, Ill: The Interstate, 1954.

MLA (9th ed.) Citation

Krebs, Alfred H. For More Effective Teaching; a Problem Solving Approach for Teachers of Vocational Agriculture. The Interstate, 1954.