APA

Panayotova M. I., Panayotov V. T., . (2014). Critical Important Raw Materials for High-Tech Applications (in brief). : Св. Иван Рилски.

Chicago

Panayotova Marinela Ivanova, Panayotov Vladko Todorov, . 2014. Critical Important Raw Materials for High-Tech Applications (in brief). : Св. Иван Рилски.

Harvard

Panayotova M. I., Panayotov V. T., . (2014). Critical Important Raw Materials for High-Tech Applications (in brief). : Св. Иван Рилски.

MLA

Panayotova Marinela Ivanova, Panayotov Vladko Todorov, . Critical Important Raw Materials for High-Tech Applications (in brief). : Св. Иван Рилски. 2014.