NEXT EDU. (2016). NEXT SCIENCE - 4 - BOOK A. NEXT EDUCATION.
Cita Chicago (17th ed.)NEXT EDU. NEXT SCIENCE - 4 - BOOK A. HYDERABAD: NEXT EDUCATION, 2016.
Cita MLA (9th ed.)NEXT EDU. NEXT SCIENCE - 4 - BOOK A. NEXT EDUCATION, 2016.
Atenció: Aquestes cites poden no estar 100% correctes.