Sixma, T. K. (1992). The three-dimensional structure of Escherichia coli heat-labile enterotoxin in relation to its function. Rijksuniversiteit te Groningen.
Chicago-referens (17:e uppl.)Sixma, Titia Karen. The Three-dimensional Structure of Escherichia Coli Heat-labile Enterotoxin in Relation to Its Function. Netherlands: Rijksuniversiteit te Groningen, 1992.
MLA-referens (8:e uppl.)Sixma, Titia Karen. The Three-dimensional Structure of Escherichia Coli Heat-labile Enterotoxin in Relation to Its Function. Rijksuniversiteit te Groningen, 1992.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.