It pretty much still works the same way. Except the cards are an electronic database.
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@BlueStateBabe yup but faster to find what you want. Oh the hours I spent in the 70's combing through the card files in SFU's library for research :)
@BlueStateBabe you just can't win :)
It's all about the Benjamins, baby.
@NorthernInvader
Now you have to pay to access a database for all those journal articles. :( At least I did, in grad school.