APA (7th ed.) Citation

SHAABAN, Y. E., & unknown. (2008). Software Metrics Definition Language.

Chicago Style (17th ed.) Citation

SHAABAN, YASSER ELSAYED, and unknown. Software Metrics Definition Language. 2008.

MLA (9th ed.) Citation

SHAABAN, YASSER ELSAYED, and unknown. Software Metrics Definition Language. 2008.

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