Ip, Y. S., Poh, C. Y., Goh, S. Y., & Smith, R. A. (2008). The role of the park manager in the environmental enhancement of green space in Singapore.
استشهاد بنمط شيكاغوIp, Yat Sing., Cher Ying Poh, Serene Yanyi Goh, و Russell Arthur Smith. The Role of the Park Manager in the Environmental Enhancement of Green Space in Singapore. 2008.
MLA استشهادIp, Yat Sing., Cher Ying Poh, Serene Yanyi Goh, و Russell Arthur Smith. The Role of the Park Manager in the Environmental Enhancement of Green Space in Singapore. 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.