Havlicek, H. (2013). A Model of the Witt Design $W_{12}$ based on Quadrics of PG(2,3).
Citazione stile Chigago Style (17a edizione)Havlicek, Hans. A Model of the Witt Design $W_{12}$ Based on Quadrics of PG(2,3). 2013.
Citatione MLA (9a ed.)Havlicek, Hans. A Model of the Witt Design $W_{12}$ Based on Quadrics of PG(2,3). 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.