|
2
|
|
Classification of sciences -- Congresses. : Hierarchical structures : proceedings. / Edited by Lancelot Law Whyte, Albert G. Wilson [and] Donna Wilson
|
1969
|
1
|
|
4
|
|
Classification of sciences -- History -- 17th century. : Universal languages and scientific taxonomy in the seventeenth century / M.M. Slaughter
|
1982
|
1
|
