1. “Direction of Faulting in Some of the Larger Earthquakes of the North Pacific, 1950–1953”;HODGSON;Publication of the Dominion Observatory,1956
2. “Seismicity of the Earth”;GUTENBERG,1954
3. HONDA, HIROKICHI., “The Mechanism of Earthquakes”. Publication of Dominion Observatory, Vol. XX No. 2, pp. 295–340, Ottawa (1957).
4. “Measurements of Earth Movements in California”;WHITTEN,1955