AACR2 में, साझा जिम्मेदारी वाले कार्यों (जहाँ तीन से अधिक लेखक न हों) के मामले में, मुख्य प्रविष्टि (main entry) किसके शीर्षक के अंतर्गत तैयार की जाती है?

A MARC-21 record communication format comprises which of the following components? i. Leader ii. Directory iii. Title iv. Variable fields v. Main entry

Who formulated the rules for subject headings in a dictionary catalogue?

According to Margaret Mann, 'A ____________ is a subject catalogue in which the entries are arranged by some recognized system of classification; the notation or classification symbol furnishes the method of arrangements.'