APA

Christoffers A., . (1957). A word directory: spelling-division. A list of words for quick reference for spelling and correct division at the end of lines for writing, for school administrators, business executives, teachers, authors, stenographers, proofreaders, typesetters, housewives, students, typists, & others. New York: Exposition Press.

Chicago

Christoffers Adele, . 1957. A word directory: spelling-division. A list of words for quick reference for spelling and correct division at the end of lines for writing, for school administrators, business executives, teachers, authors, stenographers, proofreaders, typesetters, housewives, students, typists, & others. New York: Exposition Press.

Harvard

Christoffers A., . (1957). A word directory: spelling-division. A list of words for quick reference for spelling and correct division at the end of lines for writing, for school administrators, business executives, teachers, authors, stenographers, proofreaders, typesetters, housewives, students, typists, & others. New York: Exposition Press.

MLA

Christoffers Adele, . A word directory: spelling-division. A list of words for quick reference for spelling and correct division at the end of lines for writing, for school administrators, business executives, teachers, authors, stenographers, proofreaders, typesetters, housewives, students, typists, & others. New York: Exposition Press. 1957.