Smith 2002, p. 111. Smith, Nila Banton (2002) [1965]. American reading instruction. Newark: International Reading Association. ISBN9780872073487. [with prologue by Richard Robinson, epilogue by Norman A. Stahl, and history of reading since by P. David Pearson].
Blyth 1981, p. 70. Blyth, Alan (1981). "From Individuality to Character: The Herbartian Sociology Applied to Education". British Journal of Educational Studies. 29 (1): 69–79. doi:10.2307/3120425. JSTOR3120425.
Blyth 1981, p. 72. Blyth, Alan (1981). "From Individuality to Character: The Herbartian Sociology Applied to Education". British Journal of Educational Studies. 29 (1): 69–79. doi:10.2307/3120425. JSTOR3120425.
Blyth 1981, p. 77. Blyth, Alan (1981). "From Individuality to Character: The Herbartian Sociology Applied to Education". British Journal of Educational Studies. 29 (1): 69–79. doi:10.2307/3120425. JSTOR3120425.
Blyth 1981, p. 70. Blyth, Alan (1981). "From Individuality to Character: The Herbartian Sociology Applied to Education". British Journal of Educational Studies. 29 (1): 69–79. doi:10.2307/3120425. JSTOR3120425.
Blyth 1981, p. 72. Blyth, Alan (1981). "From Individuality to Character: The Herbartian Sociology Applied to Education". British Journal of Educational Studies. 29 (1): 69–79. doi:10.2307/3120425. JSTOR3120425.
Blyth 1981, p. 77. Blyth, Alan (1981). "From Individuality to Character: The Herbartian Sociology Applied to Education". British Journal of Educational Studies. 29 (1): 69–79. doi:10.2307/3120425. JSTOR3120425.