Can I read this pdf online legally?

In my country, as far as my research has shown, copyright expires 50 years after the author’s death. I want to read The Colossus and Other Poems by Sylvia Plath online for free, because I can’t go to a library or bookshop currently and don’t really have money that can be spent on books. If I read a pdf online, or use a website like Scribd or some such, would this be legal, seeing as it has been 58 years since the end of Sylvia Plath’s life?