APA استشهاد

Mayaud, P. N. R. (1977). Supplementary geomagnetic data, 1957-1975.

استشهاد بنمط شيكاغو

Mayaud, P N; Romana. Supplementary Geomagnetic Data, 1957-1975. IUGG Publications, Holland, 1977.

MLA استشهاد

Mayaud, P N; Romana. Supplementary Geomagnetic Data, 1957-1975. 1977.