Gaya APA
Marel, V, D. (1988).
On the great circle reduction in the data analysis for the astrometric satellite hipparcos .
Delft:
W.D. Meinema.
Gaya MLA
Marel, Van, Der.
"On the great circle reduction in the data analysis for the astrometric satellite hipparcos".
Delft:
W.D. Meinema,
1988.
Cetak.