Columbia subject headings:
Anthropology.
Ethnology.
Human beings.
Marx, Karl, 1818-1883--Notebooks, sketchbooks, etc.
Marx, Karl, 1818-1883.
Prehistoric peoples.
Harvard subject headings:
Ethnology.
Human beings.
Marx, Karl, 1818-1883
Marx, Karl, 1818-1883--Notebooks, sketchbooks, etc.
Primitive societies.
Princeton subject headings:
Human beings.
Marx, Karl, 1818-1883.
Primitive societies.