APA (7th ed.) Citation

Billy Zhi Yang, C. (2013). Compression in image recovery watermarking using PNG (Portable Network Graphic).

Chicago Style (17th ed.) Citation

Billy Zhi Yang, Chang. Compression in Image Recovery Watermarking Using PNG (Portable Network Graphic). 2013.

MLA (8th ed.) Citation

Billy Zhi Yang, Chang. Compression in Image Recovery Watermarking Using PNG (Portable Network Graphic). 2013.

Warning: These citations may not always be 100% accurate.