Post scriptum : PS.

MLA

Strömholm, Christer, et al. Post Scriptum : Ps. Stockholm: Max Ström, 2012.

APA

Strömholm, C., Caujolle, C., Naggar, C., & Tell, J. (2012). Post scriptum : PS. Stockholm: Max Ström.

Chicago

Strömholm, Christer, Christian Caujolle, Carole Naggar, and Johan Tell. Post Scriptum: PS.. Stockholm: Max Ström, 2012.