Cita APA (7a ed.)

BLASHFIELD, J. &. B. (1991). OIL SPILLS. CHILDRENS PRESS.

Cita Chicago Style (17a ed.)

BLASHFIELD, JEAN.F & BLACK. OIL SPILLS. USA: CHILDRENS PRESS, 1991.

Cita MLA (9a ed.)

BLASHFIELD, JEAN.F & BLACK. OIL SPILLS. CHILDRENS PRESS, 1991.