Gaya APA
Indonesia.Bakosurtanal, . (1973).
The Use of time signals in geodetic astronomy (Bulletin No.2) .
Cibinong:
Bakosurtanal.
Gaya MLA
Indonesia.Bakosurtanal, .
"The Use of time signals in geodetic astronomy (Bulletin No.2)".
Cibinong:
Bakosurtanal,
1973.
Text.