Сп B93
Каталог "Периодика" | Периодични издания
Bulgarian Historical Review
Organ of the Institute of History at the Bulgarian Academy Science
Сп B93
Сп B97
Сп J80
Сп В93
Каталог "Периодика" | Периодични издания
Bulgarian Journal of Veterenary Medicine
Published the Faculty of Veterenary Medicine
Сп B93
Сп B93
Сп И36х
Сп A20
Сп D56