Lua APA (7ú heag.)

Hollis, E. V. (1945). Toward improving Ph.D. programs. American council on education.

Lua i Stíl Chicago (17ú heag.)

Hollis, Ernest Victor. Toward Improving Ph.D. Programs. Washington, D. C: American council on education, 1945.

Lua MLA (9ú heag.)

Hollis, Ernest Victor. Toward Improving Ph.D. Programs. American council on education, 1945.

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