[lemma=","] [!(lemma=warn | tag=PRP | □)] □
[lemma=","] [!(lemma=warn | tag=PRP | □=□)] □
[lemma=","] [!(lemma=warn | tag=PRP | □ & □)] □
Nils Langer 's contribution , '' On the importance of foreign language grammars for a history of Standard German '' ( 67-82 ) , suggests that an investigation of early grammars of foreign languages can be useful in preparing a history of Standard German , since they may indicate how and to what extent prescriptivist recommendations entered language use . Part I and Part II , written by Arbib himself , form an introductory passage into the bulk of 285 articles in Part III . We reviewed federal debt collection policies , procedures , and guidance including FMS ' Managing Federal Receivables and OMB Circular A-129 , Policies for Federal Credit Programs and Non-tax Receivables . In each case , payment in this manner must be agreeable to the vendor ; and only one Government establishment may be the debtor . In general , operculate land snails have a round aperture and solid shells , frequently with spiral ridges .