Hertwig, O. The Biological Problem of To-day: Preformation Or Epigenesis? The Basis of a Theory of Organic Development.
Chicago Style (17th ed.) CitationHertwig, Oscar. The Biological Problem of To-day: Preformation Or Epigenesis? The Basis of a Theory of Organic Development.
MLA (9th ed.) CitationHertwig, Oscar. The Biological Problem of To-day: Preformation Or Epigenesis? The Basis of a Theory of Organic Development.
Warning: These citations may not always be 100% accurate.