How Many Hippos?
| Book | How Many Hippos? |
| Series | Early Learning Program |
| Publisher | Educational Technologies Limited |
| Managing Director | Trevor E. Lunn |
| Director | Mushtaq Panjwani |
| Marketing Director | Shirley Tung |
| Financial Director | Florence Yip |
| Publishing Director | Johnny Lam |
| Consultant | Lewis P. Lipsitt, Judith A. Schickedanz, Catherine Motz Peterson |
| Format | Hardback |
| Language | English |
| Reprinted | 2007 |
| First Printing | 1992 |
| Volume Number | 2 |
| ISBN 10 | 0-7835-2154-5 |
Added by almoadhadi