Gaya APA

Shaskolʹskai︠a︡, M, P, (, P., Ėlʹt︠s︡in, I, A. (2013). Selected problems in physics with answers . New York: Dover Publications.

Gaya MLA

Shaskolʹskai︠a︡, M., P., (Marianna, Petrovna)., Ėlʹt︠s︡in, I., A.. "Selected problems in physics with answers". New York: Dover Publications, 2013. Text.