Crawford, H. (1978). The Mechanics of the Obsidian Trade: A Suggestion.
Chicago Style (17th ed.) CitationCrawford, Harriet. The Mechanics of the Obsidian Trade: A Suggestion. 1978.
MLA (8th ed.) CitationCrawford, Harriet. The Mechanics of the Obsidian Trade: A Suggestion. 1978.
Warning: These citations may not always be 100% accurate.