Dyfyniad APA

V. John, T., & L. Courtland, B. (2025). Excellence in Business Communication (14th Edition) (Global Edition). British Library Cataloguing-in-Publication Data.

Dyfyniad Arddull Chicago

V. John, Thill, và Bovée L. Courtland. Excellence in Business Communication (14th Edition) (Global Edition). British Library Cataloguing-in-Publication Data, 2025.

Dyfyniad MLA

V. John, Thill, và Bovée L. Courtland. Excellence in Business Communication (14th Edition) (Global Edition). British Library Cataloguing-in-Publication Data, 2025.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.