APA (7th ed.) Citation

Paunio, J. J. (1961). A study in the thory of open inflation. [publisher not identified].

Chicago Style (17th ed.) Citation

Paunio, J. J. A Study in the Thory of Open Inflation. Helsinki: [publisher not identified], 1961.

MLA (9th ed.) Citation

Paunio, J. J. A Study in the Thory of Open Inflation. [publisher not identified], 1961.