APA (7th ed.) Citation

Perkins, R. F. (1991). Into the great solitude: An Arctic journey. H. Holt.

Chicago Style (17th ed.) Citation

Perkins, Robert F. Into the Great Solitude: An Arctic Journey. New York: H. Holt, 1991.

MLA (8th ed.) Citation

Perkins, Robert F. Into the Great Solitude: An Arctic Journey. H. Holt, 1991.