APA

(1981). The energy saving guide. Oxford: Published for the Commission of the European Communities by Pergamon Press.

Chicago

1981. The energy saving guide. Oxford: Published for the Commission of the European Communities by Pergamon Press.

Harvard

(1981). The energy saving guide. Oxford: Published for the Commission of the European Communities by Pergamon Press.

MLA

The energy saving guide. Oxford: Published for the Commission of the European Communities by Pergamon Press. 1981.