1
The statistics of meteors in the earth's atmosphere / by Gerald S. Hawkins and Richard B. Southworth
Published: 1958
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series II 128
2
Published: 1958
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series II 136
3
Published: 1959
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series II 154