RUHANTA YA KASA GASKIYA
Harold W. Percival
Copyright 1952 ta Harold W. Percival
Copyright 1980 ta The Word Foundation, Inc.
An kare dukkan haƙƙoƙi, gami da theancin sake ƙirƙirar wannan littafin ko ɓangarensa a kowane fanni.
Farkon bugawa, 1952
Buga na biyu, 1988
Buga na uku, 2012
ISBN: 978-0-911650-10-5