Task; bibliography via Zotero

This is my bibliography there is some i have not done yet Zotero keeps freezing on me but i did my best so far, im not sure if this is correct. The articles i tried getting, Zotero seems to hate them.




Baillie-de Byl, P. (2012) Holistic game development with Unity : an all-in-one guide to implementing game mechanics, art, design, and programming . Amsterdam; London: Focal


Bartle, R.A. and Bateman, C.M. (2009) Beyond game design : nine steps towards creating better video games. Boston, Mass.; United Kingdom: Course Terchnology/Cengage Learning.


Jeanette Stallons , Andrew Shorten, Vince Genovese (2010)  Getting started with Flex 4th Edition., O'Reilly Media / Adobe Dev Library.


Hooks, J. (2011) Actionscript Developer's Guide to Robotlegs 1st edition. Cambridge: O'Reilly Media.