Gaya APA

Labib, A, W. (1999). The millennium problem versus the maintenance problem (Vol. 12 Issue: 3, pp.254-258). United Kingdom: Emerald Insight.

Gaya MLA

Labib, Ashraf, W.. "The millennium problem versus the maintenance problem". Vol. 12 Issue: 3, pp.254-258 United Kingdom: Emerald Insight, 1999. Article.