| 6-1 to 16-423). Table XVII: <Wray 17-NNN> (Nos 17-1 to 17-113). Table XVIII: <Wray 18-NNN> (Nos 18-1 to 18-323). Table XIX: <Wray 19-NN> (Nos 19-1 to 19-55). | |
| Auth.: | WRAY J.D. |
| =E= | Catalogue in electronic form as <III/277/> |
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