Dyfyniad APA

(1988). IMP 7 (Explorer 47) trajectory September 26, 1972 to September 25, 1978 / by Pamela A. Milligan, Alan J. Lazarus.

Dyfyniad Arddull Chicago

IMP 7 (Explorer 47) Trajectory September 26, 1972 to September 25, 1978 / by Pamela A. Milligan, Alan J. Lazarus. 1988.

Dyfyniad MLA

IMP 7 (Explorer 47) Trajectory September 26, 1972 to September 25, 1978 / by Pamela A. Milligan, Alan J. Lazarus. 1988.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.