Não informado. (1969). Comments on astrophysics and space physics. Gordon and Breach.
Style de citation Chicago (17e éd.)Não informado. Comments on Astrophysics and Space Physics. New York: Gordon and Breach, 1969.
Style de citation MLA (8e éd.)Não informado. Comments on Astrophysics and Space Physics. Gordon and Breach, 1969.
Attention : ces citations peuvent ne pas être correctes à 100%.