Iowa State Teachers' Association. Committee on Vocational Education and Vocational Guidance & Iowa. Dept. of Public Instruction. (1914). Vocational education and vocational guidance: A survey and preliminary report by a committee appointed by the Iowa State Teachers' Association. Dept. of Public Instruction.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিIowa State Teachers' Association. Committee on Vocational Education and Vocational Guidance এবং Iowa. Dept. of Public Instruction. Vocational Education and Vocational Guidance: A Survey and Preliminary Report by a Committee Appointed by the Iowa State Teachers' Association. [Des Moines, Iowa?]: Dept. of Public Instruction, 1914.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিIowa State Teachers' Association. Committee on Vocational Education and Vocational Guidance এবং Iowa. Dept. of Public Instruction. Vocational Education and Vocational Guidance: A Survey and Preliminary Report by a Committee Appointed by the Iowa State Teachers' Association. Dept. of Public Instruction, 1914.