Ehlers, C. (1974). Layering in rapakivi granite, SW Finland. Åbo akademi].
Chicago Style (17th ed.) CitationEhlers, Carl. Layering in Rapakivi Granite, SW Finland. [Åbo, Finland: Åbo akademi], 1974.
MLA引文Ehlers, Carl. Layering in Rapakivi Granite, SW Finland. Åbo akademi], 1974.
警告:这些引文格式不一定是100%准确.