Style de citation APA (7e éd.)

Nenova, Y., Kalova, A., & Angelova, J. (1992). Continuing challenges to human rights and peace. PR Bulgaria : PIMAT.

Style de citation Chicago (17e éd.)

Nenova, Yordanka, Anelia Kalova, et Julia Angelova. Continuing Challenges to Human Rights and Peace. Sofia: PR Bulgaria : PIMAT, 1992.

Style de citation MLA (9e éd.)

Nenova, Yordanka, et al. Continuing Challenges to Human Rights and Peace. PR Bulgaria : PIMAT, 1992.