Herbert, S. Darwin the young geologist: Sandra Herbert. The Darwinian heritage : [incl. proceed. of the Charles Darwin Centenary Conference, Florence Center for the History and Philosophy of Science, June 1982].(1985).

Herbert, Sandra. "Darwin the Young Geologist: Sandra Herbert." The Darwinian Heritage : [incl. Proceed. of the Charles Darwin Centenary Conference, Florence Center for the History and Philosophy of Science, June 1982].(1985) .

Herbert, Sandra. "Darwin the Young Geologist: Sandra Herbert." The Darwinian Heritage : [incl. Proceed. of the Charles Darwin Centenary Conference, Florence Center for the History and Philosophy of Science, June 1982].(1985), .