APA (7th ed.) Citation

Trethowen, H. A., & Hubbard, E. F. (1972). Economics of thermal insulation. Building Research Association of New Zealand.

Chicago Style (17th ed.) Citation

Trethowen, H. A., and E. F. Hubbard. Economics of Thermal Insulation. Porirua, N.Z.: Building Research Association of New Zealand, 1972.

MLA (8th ed.) Citation

Trethowen, H. A., and E. F. Hubbard. Economics of Thermal Insulation. Building Research Association of New Zealand, 1972.