APA

British Society for Research into Learning Mathematics, . (1993). Informal proceedings / British Society for Research into Learning Mathematics. [Erscheinungsort nicht ermittelbar]: BSRLM.

Chicago

British Society for Research into Learning Mathematics, . 1993. Informal proceedings / British Society for Research into Learning Mathematics. [Erscheinungsort nicht ermittelbar]: BSRLM.

Harvard

British Society for Research into Learning Mathematics, . (1993). Informal proceedings / British Society for Research into Learning Mathematics. [Erscheinungsort nicht ermittelbar]: BSRLM.

MLA

British Society for Research into Learning Mathematics, . Informal proceedings / British Society for Research into Learning Mathematics. [Erscheinungsort nicht ermittelbar]: BSRLM. 1993.