Kerschensteiner, Georg Michael Anton (1854-1932) Tom, Alfred (1879-1944) Translator

Ray, James C. United States of America. Geological Survey.

Reed, John Calvin (1905-1993) United States of America. Geological Survey.

Capps, Stephen Reid (1881-1949) Moffit, Fred Howard (1874-1958?) United States of America. Geological Survey.

Fritzler, Hildegard (1907-1987)

Greiner, Bodo (1907- )

Firla, Tadeusz (1908- )

Fastrich, Wilhelm (1906- )

Normenausschuß der deutschen Industrie Normenausschuss der Deutschen Industrie Gesellschaft der Freunde und Förderer der Hamburgischen Schiffbau-Versuchsanstalt Hafenbautechnische Gesellschaft

Pavel, Dietmar. Editor

Ross, Clyde Polhemus (1891-1965) United States of America. Geological Survey.

Tuck, Ralph (1904-?) United States of America. Geological Survey.

Ross, Clyde Polhemus (1891-1965) United States of America. Geological Survey.

Parker, Frank Stephen (1905-1984) United States of America. Geological Survey.

Mader, Felix (1867-1941) Hager, Georg (1863-1941). Editor Mitterwieser, Alois (1876-1943). Preface Lösti, Georg (1859-1943). Photographer

Reusch, Hans Joachim (1908- )

Ritz, Joseph Maria (1892-1960) Lill, Georg (1883-1951). Editor Lösti, Georg (1859-1943). Photographer Schrötter, Georg. Preface

Henshaw, Fred Forbes (1884-1933) United States of America. Geological Survey.

Darton, Nelson Horatio (1865-1948) United States of America. Geological Survey.

Smith, Philip Sidney (1877-1949) United States of America. Geological Survey.

Widajewicz, Józef (1889-1954)

Satori-Neumann, Bruno Th. (1886-1943)

Mader, Felix (1867-1941) Hager, Georg (1863-1941). Editor Lösti, Georg (1859-1943). Photographer