Putniņš, P., Schallert, W. L., & Choate, M. (1960). Seasonal means of heights, temperatures and relative humidities for standard levels at Greenland and surrounding stations. [Weather Bureau, U.S. Dept. of Commerce].

Putniņš, Pauls, W. L. Schallert, and M. Choate. Seasonal Means of Heights, Temperatures and Relative Humidities for Standard Levels at Greenland and Surrounding Stations. Washington, D.C.: [Weather Bureau, U.S. Dept. of Commerce], 1960.

Putniņš, Pauls, et al. Seasonal Means of Heights, Temperatures and Relative Humidities for Standard Levels at Greenland and Surrounding Stations. [Weather Bureau, U.S. Dept. of Commerce], 1960.