. ▁ ▁O very , ▁Richard . ▁The ▁Bom bers ▁and ▁the ▁Bom bed : ▁Al lied ▁Air ▁War ▁Over ▁Europe ▁ 1 9 4 0 - 1 9 4 5 . ▁New ▁York : ▁Vik ing , ▁ 2 0 1 4 . ▁ ▁Pa ine , ▁Laur an . ▁German ▁Military ▁Int elligence ▁in ▁World ▁War ▁II : ▁The ▁Ab wehr . ▁New ▁York : ▁Stein ▁& ▁Day ▁Publishing , ▁ 1 9 8 4 . ▁▁ ▁P all ud , ▁Jean ▁Paul . ▁Battle ▁of ▁the ▁Bul ge : ▁Then ▁and ▁Now . ▁London : ▁After ▁the ▁Battle ▁Publications , ▁ 1 9 8 4 . ▁ ▁P all ud , ▁Jean ▁Paul . ▁Bl itz krie g ▁in ▁the ▁West : ▁Then ▁and ▁Now . ▁London : ▁After ▁the ▁Battle ▁Publications , ▁ 1 9 9 1 . ▁ ▁Pad field , ▁Peter , ▁War ▁B ene ath ▁the ▁Sea : ▁Sub marine ▁Conf lict , ▁ 1 9 3 9 - 1 9 4 5 ▁London , ▁John ▁Murray , ▁ 1 9 9 5 ▁ ▁Parker , ▁D anny ▁S . ▁Hitler ' s ▁War rior : ▁The ▁Life ▁and ▁Wars ▁of ▁SS ▁Colonel ▁Jo chen ▁Pe i per . ▁Philadelphia : ▁Da ▁Cap o ▁Press , ▁ 2 0 1 4 . ▁ ▁Perl , ▁William ▁R . ▁The ▁Four - Front ▁War : ▁From ▁the ▁Hol oca ust ▁to ▁the ▁Prom ised ▁Land . ▁New ▁York : ▁Crown , ▁ 1 9 7 9 .