NEXT EDU. (2017). NEXT SCIENCE - BOOK1 - BOOK B. NEXT EDUCATION.
Cita Chicago (17th ed.)NEXT EDU. NEXT SCIENCE - BOOK1 - BOOK B. HYDERABAD: NEXT EDUCATION, 2017.
Cita MLA (9th ed.)NEXT EDU. NEXT SCIENCE - BOOK1 - BOOK B. NEXT EDUCATION, 2017.
Atenció: Aquestes cites poden no estar 100% correctes.