Cite Them Right 11th edition - Harvard

Sommerville, I. (2011) Software engineering [book]. 9. ed., int. ed. Boston, Mass.: Pearson.

Chicago Manual of Style 17th edition (full note)

Sommerville, Ian. Software engineering. Book. 9. ed., int. ed. Boston, Mass.: Pearson, [2011?], Boston, Mass.: Pearson, [2011?].

American Psychological Association 7th edition

Sommerville, I. (ca. 2011). Software engineering (9. ed., int. ed.) [Book]. Pearson.

Modern Language Association 9th edition

Sommerville, I. Software engineering. 9. ed., int. ed., book, Pearson, 2011.

ISO-690 (author-date, Deutsch)

SOMMERVILLE, Ian, 2011. Software engineering. 9. ed., int. ed. Boston, Mass.: Pearson. ISBN 0137053460

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.