Citazione APA

(1980). Petroleum committee: Nine session, Geneva, 1980: General report. Geneva, Switzerland: International Labour Office.

Stile di citazione Chicago

Petroleum Committee: Nine Session, Geneva, 1980: General Report. Geneva, Switzerland: International Labour Office, 1980.

Citazione MLA

Petroleum Committee: Nine Session, Geneva, 1980: General Report. Geneva, Switzerland: International Labour Office, 1980.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.