Cita APA (7th ed.)

IYER, G. (2015). SCIENCE NOW - 7. COLLINS PUB.

Cita Chicago (17th ed.)

IYER, GEETHA. SCIENCE NOW - 7. COLLINS PUB, 2015.

Cita MLA (9th ed.)

IYER, GEETHA. SCIENCE NOW - 7. COLLINS PUB, 2015.