Gaya APA

Hencley, S, P., H, I, M, L, E, I, M, J. (NULL). The elementary school principalship . New: New York: Dodd, Mead & Co.; 1970..

Gaya MLA

Hencley, Stephen, P.., H, I., McCleary,, Lloyd, E., II., McGrath,, J. "The elementary school principalship". New: New York: Dodd, Mead & Co.; 1970., NULL. Text.