APA (7th ed.) Citation

Rektorys, K. (1977). Variotional methods in mathematics, science and engineering. D. Reidel Publishing.

Chicago Style (17th ed.) Citation

Rektorys, Karel. Variotional Methods in Mathematics, Science and Engineering. Dordrecht: D. Reidel Publishing, 1977.

MLA (9th ed.) Citation

Rektorys, Karel. Variotional Methods in Mathematics, Science and Engineering. D. Reidel Publishing, 1977.

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