एपीए उद्धरण

An investigation into refusal strategies to request by American speakers of English and Vietnamese learners of English.

शिकागो स्टाइल उद्धरण

An Investigation Into Refusal Strategies to Request By American Speakers of English and Vietnamese Learners of English.

एमएलए उद्धरण

An Investigation Into Refusal Strategies to Request By American Speakers of English and Vietnamese Learners of English.