APA (7th ed.) Citation

Nikolova, D. P., & Velcheva, M. P. Ascertainment of the Original Technology for Manufacturing Leather Used for Gospel-Book Binding.

Chicago Style (17th ed.) Citation

Nikolova, Diana P., and Maria P. Velcheva. Ascertainment of the Original Technology for Manufacturing Leather Used for Gospel-Book Binding.

MLA (9th ed.) Citation

Nikolova, Diana P., and Maria P. Velcheva. Ascertainment of the Original Technology for Manufacturing Leather Used for Gospel-Book Binding.

Warning: These citations may not always be 100% accurate.