Gregory, John Milton, 1822-1898. The seven laws of teaching / John Milton Gregory. - New pbk. ed. - Grand Rapids, MI : Baker Books, 2004. - 121 p. ; 22 cm. ISBN: 0801064961 (pbk.) Subjects--Topical Terms: Teaching. LC Class. No.: LB1025 / .G83 2004 Dewey Class. No.: 371.102