Gaya APA

Weber, C, A. et al (2000). An optimization approach to determining the number of vendors to employ (Volume 5 . Number 2 . 2000 . pp. 90±98). USA: Emerald.

Gaya MLA

Weber, Charles, A.. et al. "An optimization approach to determining the number of vendors to employ". Volume 5 . Number 2 . 2000 . pp. 90±98 USA: Emerald, 2000. Article.