Lehigh Star
"The 'Lehigh' Star: Discovered by Metcalf and Its Orbit Computed at Sayre Observatory". Lehigh Alumni Bulletin, Volume 11, January, 1924, Number 4.
"The 'Lehigh' Star: Discovered by Metcalf and Its Orbit Computed at Sayre Observatory". Lehigh Alumni Bulletin, Volume 11, January, 1924, Number 4.