Gaya APA

Heffernan, H. (1960). the Kindergarten teacher / Helen Heffernan, Vivian Edmiston Todd . : D.C.Heath and Co..

Gaya MLA

Heffernan, Helen. "the Kindergarten teacher / Helen Heffernan, Vivian Edmiston Todd". : D.C.Heath and Co., 1960. Referensi.