• , P.B.

Marx House Bulletin (1977), 81, (1), 17

• , P.B.

The Quarterly Bulletin of the Marx Memorial Library (1977), 81, (1), 17

• P.B.

Marx House Bulletin (1975), 75, (1), 3–6.

• P.B.

The Quarterly Bulletin of the Marx Memorial Library (1975), 75, (1), 3–6.

• P.B.

Marx House Bulletin (1974), 70, (1), 13–14.

• P.B.

The Quarterly Bulletin of the Marx Memorial Library (1974), 70, (1), 13–14.

• P.B.

Marx House Bulletin (1974), 69, (1), 6–7.

• P.B.

The Quarterly Bulletin of the Marx Memorial Library (1974), 69, (1), 6–7.

• P.B.

Marx House Bulletin (1973), 65, (1), 2–5.

• P.B.

The Quarterly Bulletin of the Marx Memorial Library (1973), 65, (1), 2–5.

• P.B.

Marx House Bulletin (1970), 54, (1), 6–10.

• P.B.

The Quarterly Bulletin of the Marx Memorial Library (1970), 54, (1), 6–10.

• P.B.

Marx House Bulletin (1968), 45, (1), 10–14.

• P.B.

Marx Memorial Library Quarterly Bulletin (1968), 45, (1), 10–14.

• P.B.

Marx House Bulletin (1967), 44, (1), 11–16.

• P.B.

Marx Memorial Library Quarterly Bulletin (1967), 44, (1), 11–16.

• P.B.

Marx House Bulletin (1965), 36, (1), 4–7.

• P.B.

Marx Memorial Library Quarterly Bulletin (1965), 36, (1), 4–7.

• P.B.

Marx House Bulletin (1964), 32, (1), 2–6.

• P.B.

Marx Memorial Library Quarterly Bulletin (1964), 32, (1), 2–6.