APA

Riddlestone H., Electrical Research Association E. & Electrical Research Association E. (1965). Flameproof enclosures: Safe gaps for enclosures of small volume. Surrey: Electrical Research Association.

Chicago

Riddlestone H.G, Electrical Research Association ERA and Electrical Research Association ERA. 1965. Flameproof enclosures: Safe gaps for enclosures of small volume. Surrey: Electrical Research Association.

Harvard

Riddlestone H., Electrical Research Association E. and Electrical Research Association E. (1965). Flameproof enclosures: Safe gaps for enclosures of small volume. Surrey: Electrical Research Association.

MLA

Riddlestone H.G, Electrical Research Association ERA and Electrical Research Association ERA. Flameproof enclosures: Safe gaps for enclosures of small volume. Surrey: Electrical Research Association. 1965.