The possessive form for a plural compound noun.
These authors researched the correct way to make a plural compound noun into a possessive one. They describe the grammar rule for this and provide a sample for you to practice.
Taylor
A
A
Southwestern College, Chula Vista, California 91910-7299, USA.
Chao
S Y
SY
D006801:Humans; D008037:Linguistics; D011643:Publishing; D014956:Writing