Macan, T. T. (Thomas Townley) <br/><br/>
A key to the nymphs of the British species of Ephemeroptera with notes on their ecology, 
by T. T. Macan. 
 - 2d ed. 
 - Ambleside,  Freshwater Biological Association,  1970. 
 - Freshwater Biological Association. Scientific publication  no. 20 .
 - Scientific publication (Freshwater Biological Association) ;  no. 20. .
<br/><br/>Bibliography: p. [65]-68. 
<br/><br/><label>ISBN: </label>0900386134  7/- 
<br/><br/><label>LCCN: </label>71588703 //r904 
<br/><br/><label>Nat. Bib. No.: </label>B70-30054 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mayflies -- Great Britain.--Mayflies -- Great Britain.<br/>Nymphs (Insects)
<br/><br/><label>LC Class. No.: </label>QL513.E7  / M3 1970 
<br/><br/><label>Dewey Class. No.: </label>595.7/34/0942