Cita APA (7a ed.)
(1990). Topics in combinatorics and graph theory.: Essays in honour of Gerhard Ringel. Physica Verl.
Cita Chicago Style (17a ed.)
Topics in Combinatorics and Graph Theory.: Essays in Honour of Gerhard Ringel. Heidelberg: Physica Verl, 1990.
Cita MLA (9a ed.)
Topics in Combinatorics and Graph Theory.: Essays in Honour of Gerhard Ringel. Physica Verl, 1990.
Precaución: Estas citas no son 100% exactas.