APA (7th ed.) Zitazioa

SPENCER, E. W. (1977). Introduction to the structure of the earth. McGraw-Hill Kogakusha.

Chicago Style (17th ed.) Zitazioa

SPENCER, Edgar W. Introduction to the Structure of the Earth. Tokyo: McGraw-Hill Kogakusha, 1977.

MLA (9th ed.) Zitazioa

SPENCER, Edgar W. Introduction to the Structure of the Earth. McGraw-Hill Kogakusha, 1977.