monographs, series of books, and pamphlets, and printed materials compiled in loose-leaf and bound volume format, all dealing with private sewage disposal standards directed to government officials, architects, engineers and others concerned with private sewage disposal

'architect':30 'book':4 'bound':16 'compil':10 'concern':34 'deal':20 'direct':26 'dispos':24,38 'engin':31 'format':18 'govern':28 'leaf':14 'loos':13 'loose-leaf':12 'materi':9 'monograph':1 'offici':29 'other':33 'pamphlet':6 'print':8 'privat':22,36 'seri':2 'sewag':23,37 'standard':25 'volum':17

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