Costello, C., & Sharma, M. (2012). Elgg 1.8 social networking: Create, customize, and deploy your very own social networking site with Elgg (2nd ed.). Packt Pub..
Citace podle Chicago (17th ed.)Costello, Cash, a Mayank Sharma. Elgg 1.8 Social Networking: Create, Customize, and Deploy Your Very Own Social Networking Site with Elgg. 2nd ed. Birmingham, U.K.: Packt Pub., 2012.
Citace podle MLA (9th ed.)Costello, Cash, a Mayank Sharma. Elgg 1.8 Social Networking: Create, Customize, and Deploy Your Very Own Social Networking Site with Elgg. 2nd ed. Packt Pub., 2012.
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