Tony, P. (2025). Essentials of Marketing Research ( 4th Edition ). British Library Cataloguing-in-Publication Data.
استشهاد بنمط شيكاغوTony, Proctor. Essentials of Marketing Research ( 4th Edition ). British Library Cataloguing-in-Publication Data, 2025.
MLA استشهادTony, Proctor. Essentials of Marketing Research ( 4th Edition ). British Library Cataloguing-in-Publication Data, 2025.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.