APA-referens (7:e uppl.)

Hooker, P. J. (1993). Methane: Its occurence and hazards in construction. CIRIA.

Chicago-referens (17:e uppl.)

Hooker, P. J. Methane: Its Occurence and Hazards in Construction. London: CIRIA, 1993.

MLA-referens (9:e uppl.)

Hooker, P. J. Methane: Its Occurence and Hazards in Construction. CIRIA, 1993.