Columbia subject headings:
Husserl, Edmund, 1859-1938.
Natorp, Paul, 1854-1924.
Psychology--Philosophy--History--20th century.
Subjectivity--History--20th century.
Harvard subject headings:
Husserl, Edmund, 1859-1938
Natorp, Paul, 1854-1924
Psychology--Philosophy--History--20th century.
Subjectivity--History--20th century.
Princeton subject headings:
Husserl, Edmund, 1859-1938.
Natorp, Paul, 1854-1924.
Psychology--Philosophy--History--20th century.
Subjectivity--History--20th century.