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.
Issue No. 3 is given on the inner title but as it was published in 1967 and is a part of series of volume 66 and issue 5. Volume and issue number: Volume 66, Issue 3 / Volume 66, Issue 3.