Zayyan, E. S. N., .Al-Kholy, H., Meyer, G., & .Al-Badawy, S. (1997). The relationship between economic activites and labour force in the Republic of South Africa (1 st. ed.). [s. n.]،.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रZayyan, Ezzat Saleh Nemr, H. .Al-Kholy, Guenter Meyer, और S. .Al-Badawy. The Relationship Between Economic Activites and Labour Force in the Republic of South Africa. 1 st. ed. Cairo: [s. n.]،, 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्रZayyan, Ezzat Saleh Nemr, et al. The Relationship Between Economic Activites and Labour Force in the Republic of South Africa. 1 st. ed. [s. n.]،, 1997.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.