Volume 20 and issue 10 is given by the cataloger erroneously while as this issue was published in 1945 and is a part of volume 22 and issue 4. Volume and issue number: Volume 20, Issue 10 / Volume 20, Issue 10.
Volume 20 and issue 11 is given by the cataloger erroneously while as this issue was published in 1945 and is a part of volume 22 and issue 5. Volume and issue number: Volume 20, Issue 11 / Volume 20, Issue 11.