For Fucks Sake - Large Journal

Write a grocery list, write a love letter, write the next great American novel... Whatever it is, just write that shit down! Our journals spiral bound with 80 lined pages. Printed on 100% recycled paper. Size: 5" x 7".

IS IT "FOR FUCKS SAKE" OR "FOR FUCK'S SAKE" WITH AN APOSTROPHE? IT'S FOR A BUSINESS LETTER SO IT HAS TO LOOKE PROFESSIONAL.