Gaya APA

Howes, V, M., Swanson, C, P. (1974). Informal teaching in the open classroom . Ne York: Ne York: Macmillan; 1974.

Gaya MLA

Howes, Virgil, M.., Swanson, Carl, P.. "Informal teaching in the open classroom". Ne York: Ne York: Macmillan; 1974, 1974. Text.