APA-referens (7:e uppl.)

ERRIDGE ANDREW. (2001). BEST PRACTICE PROCUREMENT. GOWER.

Chicago-referens (17:e uppl.)

ERRIDGE ANDREW. BEST PRACTICE PROCUREMENT. ENGLAND: GOWER, 2001.

MLA-referens (9:e uppl.)

ERRIDGE ANDREW. BEST PRACTICE PROCUREMENT. GOWER, 2001.