APA (7th ed.) Citation

Lunardini, V. J. (1995). Permafrost formation time. US Army Corps of Engineers, Cold Regions Research & Engineering Laboratory ; [Available from NTIS].

Chicago Style (17th ed.) Citation

Lunardini, Virgil J. Permafrost Formation Time. [Hanover, N.H.] : [Springfield, Va.]: US Army Corps of Engineers, Cold Regions Research & Engineering Laboratory ; [Available from NTIS], 1995.

MLA (9th ed.) Citation

Lunardini, Virgil J. Permafrost Formation Time. US Army Corps of Engineers, Cold Regions Research & Engineering Laboratory ; [Available from NTIS], 1995.