recomended glue for hardwood flooring

hey guys , starting to lay my 3/4 " birch floor tomorow and will be doing the stairs early next week , i was thinking on gluing the treads , so could someone recomend a good glue , that rona or home hardware sells. also there will be two and a half boards wide to make up the treads should i glue the tounge and groove on them as well or not. thanks fred
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