Gaya APA

Balmino, G.. (1999). IUGG year book January 1999 . Toulouse Cedex: IUGG.

Gaya Chicago

Balmino, G.. IUGG year book January 1999. Toulouse Cedex: IUGG, 1999. Text.

Gaya MLA

Balmino, G.. IUGG year book January 1999. Toulouse Cedex: IUGG, 1999. Text.

Gaya Turabian

Balmino, G.. IUGG year book January 1999. Toulouse Cedex: IUGG, 1999. Print.