Cita APA (7a ed.)

HARRISON. E. R. (2014). FRANK MODERN CERTIFICATE BIOLOGY FOR MIDDLE SCHOOL CLASS- VII. FRANK BROS & CO.

Cita Chicago Style (17a ed.)

HARRISON. E. R. FRANK MODERN CERTIFICATE BIOLOGY FOR MIDDLE SCHOOL CLASS- VII. FRANK BROS & CO, 2014.

Cita MLA (9a ed.)

HARRISON. E. R. FRANK MODERN CERTIFICATE BIOLOGY FOR MIDDLE SCHOOL CLASS- VII. FRANK BROS & CO, 2014.