LEHNER, P. N., & LEHNER, P. N. Handbook Of Ethological Methods Philip N. Lehner. Garland STPM Press.
Lua i Stíl Chicago (17ú heag.)LEHNER, Philip N., agus Philip N. LEHNER. Handbook Of Ethological Methods Philip N. Lehner. Garland STPM Press.
Lua MLA (8ú heag.)LEHNER, Philip N., agus Philip N. LEHNER. Handbook Of Ethological Methods Philip N. Lehner. Garland STPM Press.
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