00351nam a22000977a 4500008004100000020002900041080001000070100002200080245010400102264004700206220307s1972    us ||||| |||| 00| 0 eng d  a144749654c9781447496540  a668.5  aGuenther, Ernest   aThe essential oils :bVol. 1 History - origin in plants - production - analysis /cErnest Guenther.  aNew York :bKrieger Publ. Company, c1972.