Cuban, L. (1972). Can earth survive? ([Bd.] 7.). Scott, Foresman.
Cita Chicago Style (17a ed.)Cuban, Larry. Can Earth Survive? [Bd.] 7. Glenview, Ill. [u.a.]: Scott, Foresman, 1972.
Cita MLA (9a ed.)Cuban, Larry. Can Earth Survive? [Bd.] 7. Scott, Foresman, 1972.
Precaución: Estas citas no son 100% exactas.