Cita APA (7th ed.)

NEXT EDU. (2016). NEXT ENGLISH - 4 BOOK B. NEXT EDUCATION.

Cita Chicago (17th ed.)

NEXT EDU. NEXT ENGLISH - 4 BOOK B. HYDERABAD: NEXT EDUCATION, 2016.

Cita MLA (9th ed.)

NEXT EDU. NEXT ENGLISH - 4 BOOK B. NEXT EDUCATION, 2016.