एपीए उद्धरण

Boller, P. F. (1981). American thought in transition: The impact of evolutionary naturalism 1865-1900. Washington: Universal Press of America.

शिकागो स्टाइल उद्धरण

Boller, Paul F. American Thought in Transition: The Impact of Evolutionary Naturalism 1865-1900. Washington: Universal Press of America, 1981.

एमएलए उद्धरण

Boller, Paul F. American Thought in Transition: The Impact of Evolutionary Naturalism 1865-1900. Washington: Universal Press of America, 1981.