APA (7th ed.) Citation

(1990). Education at a distance: From issues to practice (Orig. ed.). Krieger.

Chicago Style (17th ed.) Citation

Education at a Distance: From Issues to Practice. Orig. ed. Malabar, Fla: Krieger, 1990.

MLA (9th ed.) Citation

Education at a Distance: From Issues to Practice. Orig. ed. Krieger, 1990.