Gaya APA
Muller, H. (1973).
Astronomical position, time and azimuth determinations with the Kern DKM 3-A .
Switzerland:
Kern Teknik Indonesia.
Gaya MLA
Muller, Helmut.
"Astronomical position, time and azimuth determinations with the Kern DKM 3-A".
Switzerland:
Kern Teknik Indonesia,
1973.
Text.