Cita APA (7a ed.)

Sodankyla Geophysical Observatory, Keranen, J., & Sucksdorff, C. (1973). Collected papers to commemorate the 60th anniversary of the Sodankylä Observatory. Sodankylä Geophysical Observatory.

Cita Chicago Style (17a ed.)

Sodankyla Geophysical Observatory, J. Keranen, y C. Sucksdorff. Collected Papers to Commemorate the 60th Anniversary of the Sodankylä Observatory. Helsinki: Sodankylä Geophysical Observatory, 1973.

Cita MLA (9a ed.)

Sodankyla Geophysical Observatory, et al. Collected Papers to Commemorate the 60th Anniversary of the Sodankylä Observatory. Sodankylä Geophysical Observatory, 1973.