Howell, F. C. E. P. T. Manusia Purba Pustaka Alam Life. Tira Pustaka.
Chicago Style (17th ed.) CitationHowell, F. ClarkPara Editor Pustaka Time-Life. Manusia Purba Pustaka Alam Life. Tira Pustaka.
MLA (8th ed.) CitationHowell, F. ClarkPara Editor Pustaka Time-Life. Manusia Purba Pustaka Alam Life. Tira Pustaka.
Warning: These citations may not always be 100% accurate.