APA

(1997). Leciening Resources Catologue. New York: [s.n.].

Chicago

1997. Leciening Resources Catologue. New York: [s.n.].

Harvard

(1997). Leciening Resources Catologue. New York: [s.n.].

MLA

Leciening Resources Catologue. New York: [s.n.]. 1997.