Freeman, R. B. (1978). Charles Darwin : a companion / by R.B. Freeman: A companion. Dawson (etc.).
Chicago Style (17th ed.) CitationFreeman, R. B. Charles Darwin : A Companion / by R.B. Freeman: A Companion. Folkestone: Dawson (etc.), 1978.
MLA (9th ed.) CitationFreeman, R. B. Charles Darwin : A Companion / by R.B. Freeman: A Companion. Dawson (etc.), 1978.
Warning: These citations may not always be 100% accurate.