APA引文

Block, J. (2002). Information marketing of free-based services in academic libraries Sri Lanka.

Chicago Style (17th ed.) Citation

Block, Jayatissa. Information Marketing of Free-based Services in Academic Libraries Sri Lanka. 2002.

MLA引文

Block, Jayatissa. Information Marketing of Free-based Services in Academic Libraries Sri Lanka. 2002.

警告：这些引文格式不一定是100％准确.