Journal volume

Pilsbry, H.A. & Baker, H.B. 1947-1948. Vol. 61. July, 1947 to April, 1948. Nautilus, Jul 1947 - Apr 1948: [i]-vi, 1-144. ≡

Journal issues

1. Pilsbry, H.A. & Baker, H.B. (eds.), 1947. No. 1, Jul 1947.