International Symposium on Weak Rock Tokyo & Akai, K. (1981). Weak rock: Soft, fractured and weathered rock, proceedings of the International Symposium on Weak Rock, Tokyo/21-24 September 1981. A.A. Balkema.
Citazione stile Chigago Style (17a edizione)International Symposium on Weak Rock Tokyo e Koichi Akai. Weak Rock: Soft, Fractured and Weathered Rock, Proceedings of the International Symposium on Weak Rock, Tokyo/21-24 September 1981. Rotterdam,[The Netherlands]: A.A. Balkema, 1981.
Citatione MLA (9a ed.)International Symposium on Weak Rock Tokyo e Koichi Akai. Weak Rock: Soft, Fractured and Weathered Rock, Proceedings of the International Symposium on Weak Rock, Tokyo/21-24 September 1981. A.A. Balkema, 1981.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.