Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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