APA (7th ed.) Citation

Guppy, E. M., & Phemister, J. (1945). Rock wool. H.M. Stationery Off..

Chicago Style (17th ed.) Citation

Guppy, Eileen M., and J. Phemister. Rock Wool. London: H.M. Stationery Off., 1945.

MLA (8th ed.) Citation

Guppy, Eileen M., and J. Phemister. Rock Wool. H.M. Stationery Off., 1945.

Warning: These citations may not always be 100% accurate.