APA (7th ed.) Citation

DAS, P. (2013). Spoken english functional grammar and translation proficiency. New central book agency.

Chicago Style (17th ed.) Citation

DAS, P.C. Spoken English Functional Grammar and Translation Proficiency. London: New central book agency, 2013.

MLA (9th ed.) Citation

DAS, P.C. Spoken English Functional Grammar and Translation Proficiency. New central book agency, 2013.

Warning: These citations may not always be 100% accurate.