Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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