APA (7th ed.) Citation

Gilman, L. (2011). Aspects of Modern Opera Estimates and Inquiries. Project Gutenberg.

Chicago Style (17th ed.) Citation

Gilman, Lawrence. Aspects of Modern Opera Estimates and Inquiries. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Gilman, Lawrence. Aspects of Modern Opera Estimates and Inquiries. Project Gutenberg, 2011.

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