HOWLETT, J. (2013). progressive education: :a critical introduction. Bloomsbury Aademic.
芝加哥风格引文HOWLETT, John. Progressive Education: :a Critical Introduction. Bloomsbury Aademic, 2013.
MLA引文HOWLETT, John. Progressive Education: :a Critical Introduction. Bloomsbury Aademic, 2013.
警告：这些引文格式不一定是100％准确.