पुस्तकालय विज्ञान का निम्नलिखित में से कौन सा सूत्र राज्य के दायित्व पर बल देता है?

When planning a library building, the 'Fifth Law of Library Science' implies that the building should be designed for future expansion. For how many years of future growth are library buildings typically planned?

The statement 'Netflix is for watching' is equivalent to which law of library science?