APA (7th ed.) Citation

Erl, T. The Principles of Service-Orientation. SOA webservices journal..

Chicago Style (17th ed.) Citation

Erl, Thomas. "The Principles of Service-Orientation." SOA Webservices Journal. .

MLA (9th ed.) Citation

Erl, Thomas. "The Principles of Service-Orientation." SOA Webservices Journal., .

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