Kropotkin, Petr Alekseevich, kniaz, 1842-1921.
Estestvenno nauchnye raboty / Petr Alekseevich Kropotkin.
Earth sciences
Earth sciences -- Russia (Federation).
Markin, Viacheslav Alekseevich.
Biriukov, A. V.
Balandin, R. K. (Rudol f Konstantinovich)
Kropotkin, P. N. (Petr Nikolaevich)
Lavrushin, IU. A. (IUrii Aleksandrovich)